If set, and Jenkins is set to poll for changes, Jenkins will ignore any files and/or
folders in this list when determining if a build needs to be triggered.
Each exclusion uses regular expression pattern matching, and must be separated by a new line.
myapp/src/main/web/.*\.html
myapp/src/main/web/.*\.jpeg
myapp/src/main/web/.*\.gif
The example above illustrates that if only html/jpeg/gif files have been committed to
the SCM a build will not occur.
More information on regular expressions can be found
here.