fix(patches): improve chance of successful patch application by using -l

This causes patch to ignore whitespace changes, which should make it
more likely to apply patches which may not be an exact match.

Author: jimeh

build-emacs-for-macos

@@ -1159,7 +1159,9 @@ class Build
 
     if patch[:file]
       info 'Applying patch...'
-      FileUtils.cd(target) { run_cmd('patch', '-f', '-p1', '-i', patch[:file]) }
+      FileUtils.cd(target) do
+        run_cmd('patch', '-f', '-p1', '-l', '-i', patch[:file])
+      end
     elsif patch[:url]
       patch_dir = "#{target}/macos_patches"
       run_cmd('mkdir', '-p', patch_dir)