git_sha1_gen: catch any error the same way

Acked-by: Jose Fonseca <jfonseca@vmware.com>
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>

bin/git_sha1_gen.py

@@ -13,11 +13,8 @@ try:
         '--short=10',
         'HEAD',
     ], stderr=open(os.devnull, 'w'))
-except subprocess.CalledProcessError as e:
-    # don't print anything if git fails
-    pass
-except OSError as eos:
-    # don't fail on inaccessible files when sandboxed
+except:
+    # don't print anything if it fails
     pass
 else:
     sys.stdout.write('#define MESA_GIT_SHA1 "git-%s"\n' % git_sha1.rstrip())