[PATCH] sanity.bbclass: Update minimum git version to 1.7.8

[Richard Purdie <richard.purdie@linuxfoundation.org>]

To quote "Maxin B. John" <maxin.john@enea.com>:

git version 1.7.8 added the --list option to git-branch. Since we depend on this
option in git.py, the minimum requiremnt for git should be updated to Git
1.7.8+

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/sanity.bbclass b/meta/classes/sanity.bbclass
index 4b42b17..ed65814 100644
--- a/meta/classes/sanity.bbclass
+++ b/meta/classes/sanity.bbclass
@@ -386,15 +386,15 @@ def check_tar_version(sanity_data):
         return "Your version of tar is older than 1.24 and has bugs which will break builds. Please install a newer version of tar.\n"
     return None
 
-# We use git parameters and functionality only found in 1.7.5 or later
+# We use git parameters and functionality only found in 1.7.8 or later
 def check_git_version(sanity_data):
     from distutils.version import LooseVersion
     status, result = oe.utils.getstatusoutput("git --version 2> /dev/null")
     if status != 0:
         return "Unable to execute git --version, exit code %s\n" % status
     version = result.split()[2]
-    if LooseVersion(version) < LooseVersion("1.7.5"):
-        return "Your version of git is older than 1.7.5 and has bugs which will break builds. Please install a newer version of git.\n"
+    if LooseVersion(version) < LooseVersion("1.7.8"):
+        return "Your version of git is older than 1.7.8 and has bugs which will break builds. Please install a newer version of git.\n"
     return None
 
 # Check the required perl modules which may not be installed by default