[#65] Fix too specific `:Helptags` command.
[#65] Fix too specific `:Helptags` command.

chriskonstad/merlin,chambart/merlin,dra27/merlin,chambart/merlin,neojski/merlin,dra27/merlin,fxfactorial/merlin,the-lambda-church/merlin,haselwarter/merlin,rgrinberg/merlin,ocaml/merlin,rgrinberg/merlin,fxfactorial/merlin,rgrinberg/merlin,the-lambda-church/merlin,haselwarter/merlin,haselwarter/merlin,fxfactorial/merlin,rgrinberg/merlin,chriskonstad/merlin,neojski/merlin,haselwarter/merlin,ocaml/merlin,ocaml/merlin,fxfactorial/merlin,neojski/merlin,chambart/merlin,dra27/merlin,ocaml/merlin,dra27/merlin,chambart/merlin,the-lambda-church/merlin,neojski/merlin