Merge commit '36bca61764984ff5395653cf8377ec5daa71b709' as 'libs/protobuf'

libs/protobuf/fix_permissions.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+for file in $(find . -type f); do
+  if [ "$(head -c 2 $file)" == "#!" ]; then
+    chmod u+x $file
+  else
+    chmod a-x $file
+  fi
+done