MavenProject object not initialize due to mispelling into the declaration

The quotes are missing in the expression initializing the MavenProject object in AnnouncementMailMojo.java
/**

• @parameter expression=${project}
• @readonly
  */
  private MavenProject project;

So far no impact as the project member was not called, but when trying to fix other issues a NullPointerExecption is raised.

Patch:

• * @parameter expression=${project}
  + * @parameter expression="${project}"