Drush Make should support Git-style patch files

I have a makefile to build a custom site based off Pressflow. I have two core patches to Pressflow that I made that work and apply cleanly. However, I have a third patch that will not apply no matter what I do.

The makefile includes patches from our private server. 2 out of 3 apply, and each one was made using Git Tower, PHPStorm Git plugin, and git command line, with and without prefixes.

Here is a partial drush make dump:

 * [@self.12] drealty-7.x-3.0-beta3 downloaded. [12.99 sec, 9.11 MB]                                                                                                        [ok]
                                            [notice]
 * [@self.11] Project devel (7.x-1.2) downloaded to /private/tmp/make_tmp_1337871103_4fbe4aff277ea/__build__/sites/all/modules/devel. [13.07 sec, 9.25 MB]                  [success]
 * [@self.11] Command dispatch complete [13.07 sec, 9.21 MB]                                                                                                                   [notice]
 * [@self.11] Peak memory usage was 10.47 MB [13.07 sec, 9.21 MB]                                                                                                              [memory]
 * [@self.11] Load alias @self [13.07 sec, 9.21 MB]                                                                                                                            [notice]
 * [@self.11] Project devel contains 3 modules: devel_generate, devel, devel_node_access.
 * [@self.9 ] Bootstrap to phase 0. [13.12 sec, 8.79 MB]                                                                                                                    [bootstrap]
 * [@self.12] can't find file to patch at input line 5                                                                                                                         [notice]
Perhaps you used the wrong -p or --strip option?
The text leading up to this was:
--------------------------
|diff --git a/sites/all/modules/drealty/drealty.install b/sites/all/modules/drealty/drealty.install
|index da46027b005fbfd4976739da5dbf888795c78245..d645b084fe70b65ee25ead9c4df256a7a21b49f6 100644
|--- a/sites/all/modules/drealty/drealty.install
|+++ b/sites/all/modules/drealty/drealty.install
--------------------------
File to patch:
Skip this patch? [y]
Skipping patch.
1 out of 1 hunk ignored
can't find file to patch at input line 18
Perhaps you used the wrong -p or --strip option?
The text leading up to this was:
--------------------------
|diff --git a/sites/all/modules/drealty/drealty.module b/sites/all/modules/drealty/drealty.module
|index 574027c384c2d8171e02a089ba7a781bbfd98439..48d3466cb6f6ca6e0b34fc79d536f29b9195f4f9 100644
|--- a/sites/all/modules/drealty/drealty.module
|+++ b/sites/all/modules/drealty/drealty.module
--------------------------
File to patch:
Skip this patch? [y]
Skipping patch.
1 out of 1 hunk ignored [13.12 sec, 9.09 MB]
 * [@self.12] Unable to patch drealty with phrets-4.patch. [13.13 sec, 12.82 MB]   

Here is the patchfile:

diff --git a/sites/all/modules/drealty/drealty.install b/sites/all/modules/drealty/drealty.install
index da46027b005fbfd4976739da5dbf888795c78245..d645b084fe70b65ee25ead9c4df256a7a21b49f6 100644
--- a/sites/all/modules/drealty/drealty.install
+++ b/sites/all/modules/drealty/drealty.install
@@ -41,7 +41,7 @@ function drealty_requirements($phase) {
       }
       break;
     case 'runtime':
-      $file_exists = file_exists(libraries_get_path('phRets') . '/phRets.php');
+      $file_exists = file_exists(libraries_get_path('phrets') . '/phrets.php');
       $requirements['drealty'] = array(
         'title' => t('phRets library'),
         'value' => t('!msg', array(
diff --git a/sites/all/modules/drealty/drealty.module b/sites/all/modules/drealty/drealty.module
index 574027c384c2d8171e02a089ba7a781bbfd98439..48d3466cb6f6ca6e0b34fc79d536f29b9195f4f9 100644
--- a/sites/all/modules/drealty/drealty.module
+++ b/sites/all/modules/drealty/drealty.module
@@ -290,8 +290,8 @@ function drealty_load_phrets() {
   $static_cache = &drupal_static(__FUNCTION__);
 
   if (!isset($static_cache)) {
-    $path = libraries_get_path('phRets');
-    $file = $path . '/phRets.php';
+    $path = libraries_get_path('phrets');
+    $file = $path . '/phrets.php';
     if (file_exists($file)) {
       if (include_once($file)) {
         $static_cache = $file;

It sounds like from the debug dump that drush make tries to apply a patch to a file it cannot find. The outputs for the other patches are as follows:

Executing: wget -q --timeout=30 -O /private/tmp/download_file0kCDL6 http://ourdomain.com/aegir/patches/view_mode_support.patch
Calling is_readable(/private/tmp/download_file0kCDL6) [1.92 sec, 9.59 MB]                                                                                                       [debug]
Calling is_writable(/tmp/make_tmp_1337871103_4fbe4aff277ea) [1.92 sec, 9.59 MB]                                                                                                 [debug]
Calling rename(/private/tmp/download_file0kCDL6, /tmp/make_tmp_1337871103_4fbe4aff277ea/view_mode_support.patch) [1.93 sec, 9.59 MB]                                            [debug]
Executing: cd /tmp/make_tmp_1337871103_4fbe4aff277ea/__build__ && GIT_WORK_TREE=. git apply --check -p1 /tmp/make_tmp_1337871103_4fbe4aff277ea/view_mode_support.patch --verbose
  Checking patch modules/comment/comment.module...
  Checking patch modules/node/node.module...
  Checking patch modules/taxonomy/taxonomy.module...
  Checking patch modules/user/user.module...
Executing: cd /tmp/make_tmp_1337871103_4fbe4aff277ea/__build__ && GIT_WORK_TREE=. git apply -p1 /tmp/make_tmp_1337871103_4fbe4aff277ea/view_mode_support.patch --verbose
  Checking patch modules/comment/comment.module...
  Checking patch modules/node/node.module...
  Checking patch modules/taxonomy/taxonomy.module...
  Checking patch modules/user/user.module...
  Applied patch modules/comment/comment.module cleanly.
  Applied patch modules/node/node.module cleanly.
  Applied patch modules/taxonomy/taxonomy.module cleanly.
  Applied patch modules/user/user.module cleanly.
Checking patch modules/comment/comment.module...                                                                                                                               [notice]
Checking patch modules/node/node.module...
Checking patch modules/taxonomy/taxonomy.module...
Checking patch modules/user/user.module...
Applied patch modules/comment/comment.module cleanly.
Applied patch modules/node/node.module cleanly.
Applied patch modules/taxonomy/taxonomy.module cleanly.
Applied patch modules/user/user.module cleanly. [1.94 sec, 9.59 MB]