Small fixes regarding printf fix suggestions.
- Added some handling of flags that become invalid when changing the conversion specifier.
- Changed fixit behavior to remove unnecessary length modifiers.
- Separated some tests out and added some comments.

modified:
  lib/Analysis/PrintfFormatString.cpp
  test/Sema/format-strings-fixit.c


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105807 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed