[analyzer] scan-build: allow quotes around "-cc1" when looking at -### output.

Third time's the charm. Patch by Brennan Shacklett!

llvm-svn: 204362

clang/tools/scan-build/ccc-analyzer

@@ -150,7 +150,7 @@ sub GetCCArgs {
   close(TO_PARENT);
   my $line;
   while (<FROM_CHILD>) {
-    next if (!/\s-cc1\s/);
+    next if (!/\s"?-cc1"?\s/);
     $line = $_;
   }