gn build: Set +x on symlink_or_copy.py

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@366576 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/gn/build/symlink_or_copy.py b/utils/gn/build/symlink_or_copy.py
old mode 100644 (file)
new mode 100755 (executable)