PROTON-1690: add missing relativePath element to avoid build errors in some cases, fix formatting of error message and correct typo
diff --git a/tests/performance-jmh/pom.xml b/tests/performance-jmh/pom.xml
index 8d1d813..698228d 100644
--- a/tests/performance-jmh/pom.xml
+++ b/tests/performance-jmh/pom.xml
@@ -21,6 +21,7 @@
         <groupId>org.apache.qpid</groupId>
         <artifactId>proton-j-parent</artifactId>
         <version>0.24.0-SNAPSHOT</version>
+        <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -110,8 +111,7 @@
                                 <configuration>
                                     <rules>
                                         <requireReleaseVersion>
-                                            <message>Module still has a SNAPSHOT version! Ensure release is prepared
-                                                using "mvn release-prepare -Papache-release"
+                                            <message>Module still has a SNAPSHOT version! Ensure release is prepared using "mvn release:prepare -Papache-release"
                                             </message>
                                         </requireReleaseVersion>
                                     </rules>