diff -ur misc/icu/source/tools/ctestfw/uperf.cpp misc/build/icu/source/tools/ctestfw/uperf.cpp
--- misc/icu/source/tools/ctestfw/uperf.cpp	2009-01-14 23:46:00.000000000 -0800
+++ misc/build/icu/source/tools/ctestfw/uperf.cpp	2016-08-30 22:19:11.917367000 -0700
@@ -486,7 +486,7 @@
         this->runIndexedTest( index, FALSE, name );
         if (!name)
             break;
-        fprintf(stdout,name);
+        fprintf(stdout,"%s",name);
         fprintf(stdout,"\n");
         index++;
     }while (name && (name[0] != 0));