Increase the size of two SmallVectors in Generic_GCC::GCCInstallationDetector::init

In a bootstrap build of Clang, the size was always greater than 12.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@215369 91177308-0d34-0410-b5e6-96231b3b80d8
ToolChains.cpp: Increase size of Lines vector in DetectDistro

In a Clang bootstrap, the size of this vector was always 11.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@215370 91177308-0d34-0410-b5e6-96231b3b80d8