Don't crash if PR_SET_VMA_ANON_NAME fails.

This prctl is not implemented on very old devices.
It is not necessary for the core functionality of the tool. Simply
ignore the failure.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@363755 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed