fix VtablesTest.java

Author: offamitkumar

test/hotspot/jtreg/runtime/logging/VtablesTest.java

@@ -55,7 +55,7 @@ public static void main(String[] args) throws Exception {
         output.shouldContain("NOT overriding with p2.D.nooverride()V");
         output.shouldHaveExitValue(0);
 
-        pb = ProcessTools.createLimitedTestJavaProcessBuilder("-Xlog:vtables=trace", "p1/C");
+        pb = ProcessTools.createLimitedTestJavaProcessBuilder("-Xlog:vtables=trace", "p1.C");
         output = new OutputAnalyzer(pb.start());
         output.shouldContain("transitive overriding superclass ");
         output.shouldHaveExitValue(0);