[bash-autocompletion] Delete space after flags which has '=' prefix

Summary:
This is patch for bash completion for clang project.
We don't need space when completing options like "-stdlib=".

Differential Revision: https://reviews.llvm.org/D34594

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@306258 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed