Merge branch 'fix-submodule-parsing' into 'master'

Fix submodule parsing (again)

Fixes gitlab-org/gitlab-ce#714.  This addresses another bug in the `Repository#submodules` method, where the `.gitmodules` file is not parsed correctly if it contains unusual whitespace formatting.  I did not add any new tests for this change, but I did submit a merge request to the test repo at gitlab-org/gitlab-git-test!2 to introduce unusual whitespace in the test repo's `.gitmodules` file.  I have updated tests ready to go to handle the breakage inherent with a new commit in the test repo, I just need to plug in the SHAs of the merge commit and the new tag (if you create one).  When the test repo changes are merged, I'll open a new MR to update gitlab_git's tests.

/cc @jacobvosmaer @dzaporozhets

See merge request !11

Author: dzaporozhets

lib/gitlab_git/repository.rb

@@ -736,11 +736,11 @@ def parse_gitmodules(commit, content)
 
         current = ""
         content.split("\n").each do |txt|
-          if txt.match(/^\[/)
+          if txt.match(/^\s*\[/)
             current = txt.match(/(?<=").*(?=")/)[0]
             results[current] = {}
           else
-            match_data = txt.match(/(\w+) = (.*)/)
+            match_data = txt.match(/(\w+)\s*=\s*(.*)/)
             results[current][match_data[1]] = match_data[2]
 
             if match_data[1] == "path"