Fix broken line.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64740 91177308-0d34-0410-b5e6-96231b3b80d8

utils/ccc-analyzer

@@ -275,7 +275,7 @@ if (!defined $ConstraintsModel) { $ConstraintsModel = "basic"; }
 
 # Get the output format.
 my $OutputFormat = $ENV{'CCC_ANALYZER_OUTPUT_FORMAT'};
-if (!defined OutputFormat) { $OutputFormat = "html"; }
+if (!defined $OutputFormat) { $OutputFormat = "html"; }
 
 # Determine the level of verbosity.
 my $Verbose = 0;