Fix use of uninitialized variable.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58663 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/scan-build b/utils/scan-build
index f598bb0..03d8f4d 100755
--- a/utils/scan-build
+++ b/utils/scan-build
@@ -1164,7 +1164,7 @@
# Run the build.
my $ExitStatus = RunBuildCommand(\@ARGV, $IgnoreErrors, $Cmd);
-if ($OutputFormat eq "plist") {
+if (defined $OutputFormat and $OutputFormat eq "plist") {
Diag "Analysis run complete.\n";
Diag "Analysis results (plist files) deposited in '$HtmlDir'\n";
}