[analyzer] Fix scan-build's plist output in plist-html mode.

r366941 accidentally made it delete all plist files
as soon as they're produced.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@368338 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/scan-build/libexec/ccc-analyzer b/tools/scan-build/libexec/ccc-analyzer
index 277ed9f83af72f4b9bbce516ecc2489a26b19212..e1635e6c29b87dd80cfb0875622c7f9aa9ef9c3d 100755 (executable)
--- a/tools/scan-build/libexec/ccc-analyzer
+++ b/tools/scan-build/libexec/ccc-analyzer
@@ -118,7 +118,7 @@ my $ResultFile;
 
 # Remove any stale files at exit.
 END {
-  if (defined $ResultFile && $ResultFile ne "") {
+  if (defined $ResultFile && -z $ResultFile) {
     unlink($ResultFile);
   }
   if (defined $CleanupFile) {