narrow: add '()' to ellipsis in the revset help...
narrow: add '()' to ellipsis in the revset help
ellipsis is a revset function and was missing () after it's name in the help
text. This might confuse users as they try `hg log -r 'ellipsis'`.
Differential Revision:
https://phab.mercurial-scm.org/D4167