[FIXED JENKINS-11714] Fixed the problem in the find command operator priority.

see https://groups.google.com/forum/#!topic/jenkinsci-ja/4FsDhryOwYE

changelog.html

@@ -64,6 +64,9 @@ Upcoming changes</a>
   <li class=bug>
     Fixed IPv6 handling in Winstone
     (<a href="https://github.com/jenkinsci/winstone/pull/2">pull request #2</a>)
+  <li class=bug>
+    OS X installer can fail to set the file permissions correctly.
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-11714">issue 11714</a>)
 </ul>
 </div><!--=TRUNK-END=-->
 

osx/scripts/postinstall-launchd

@@ -6,7 +6,7 @@ JENKINS_PLIST="/Library/LaunchDaemons/org.jenkins-ci.plist"
 chown root:wheel ${JENKINS_PLIST}
 chmod 644 ${JENKINS_PLIST}
 mkdir -p /Users/Shared/Jenkins
-find /Users/Shared/Jenkins -not -user daemon -or -not -group daemon -print0 | xargs -0 chown daemon:daemon
+find /Users/Shared/Jenkins \( -not -user daemon -or -not -group daemon \) -print0 | xargs -0 chown daemon:daemon
 
 # Load and start the launch daemon
 /bin/launchctl load -w ${JENKINS_PLIST}