[analyzer] Fix string not being formatted with extra arguments

Signed-off-by: Mikhail Ramalho <mikhail.ramalho@gmail.com>
llvm-svn: 335739
diff --git a/clang/utils/analyzer/SATestBuild.py b/clang/utils/analyzer/SATestBuild.py
index b76df74..3137b48 100755
--- a/clang/utils/analyzer/SATestBuild.py
+++ b/clang/utils/analyzer/SATestBuild.py
@@ -280,7 +280,8 @@
     }
 
     SBOptions += "-analyzer-config '%s' " % (
-        ",".join("%s=%s" for key, value in AnalyzerConfig.iteritems()))
+        ",".join("%s=%s" % (key, value) for key, value in AnalyzerConfig.iteritems()))
+
     # Always use ccc-analyze to ensure that we can locate the failures
     # directory.
     SBOptions += "--override-compiler "