[sanitizer] Add "isapla" to symbolizer's global symbols whitelist.

Summary: D33637 introduced isalpha, whitelist need to reflect that.

Reviewers: eugenis

Subscribers: kubamracek, llvm-commits

Differential Revision: https://reviews.llvm.org/D33687

llvm-svn: 304234
GitOrigin-RevId: 0145dee36674df20eefbc95f737969bc32efab52
1 file changed