Merge pull request openshift#7259 from bmcelvee/online-3.9-stage

[online-3.9] document spaces in JENKINS_JAVA_OVERRIDES, JNLP_JAVA_OVE…

Author: bmcelvee

using_images/other_images/jenkins.adoc

@@ -231,7 +231,9 @@ override this.
 +
 Specifies additional options for the Jenkins JVM. These options are appended to
 all other options, including the Java options above, and may be used to override
-any of them if necessary.
+any of them if necessary.  Separate each additional option with a space; if any
+option contains space characters, escape them with a backslash.  Example
+settings: `-Dfoo -Dbar`; `-Dfoo=first\ value -Dbar=second\ value`.
 
 * `JENKINS_OPTS`
 +

using_images/other_images/jenkins_slaves.adoc

@@ -146,7 +146,9 @@ recommended to override this.
 +
 Specifies additional options for the Jenkins slave agent JVM. These options are
 appended to all other options, including the Java options above, and may be used
-to override any of them if necessary.
+to override any of them if necessary.  Separate each additional option with a
+space; if any option contains space characters, escape them with a backslash.
+Example settings: `-Dfoo -Dbar`; `-Dfoo=first\ value -Dbar=second\ value`.
 
 [[usage]]
 == Usage