#359: Fix comment message.

Author: heshamMassoud

src/benchmark/java/com/commercetools/sync/benchmark/BenchmarkUtils.java

@@ -22,7 +22,7 @@ final class BenchmarkUtils {
     private static final Charset UTF8_CHARSET = StandardCharsets.UTF_8;
     private static final String EXECUTION_TIME = "executionTime";
     private static final String BRANCH_NAME = ofNullable(System.getenv("TRAVIS_COMMIT"))
-        .map(commitMessage -> commitMessage.substring(0, 7)) //substring commit sha
+        .map(commitMessage -> commitMessage.substring(0, 7)) //Use smaller commit sha
         .orElse("dev-local");
 
     static final String PRODUCT_SYNC = "productSync";