Changes run_on_changes to run_on_modifications

[davejlong]

This fixes an issue with Vim where the task will run multiple times when a file is saved.

[coveralls]

Coverage decreased (-5.17%) when pulling 4d186f3 on davejlong:patch-1 into b498bd2 on yujinakayama:master.

[coveralls]

Coverage remained the same when pulling a10e1a4 on davejlong:patch-1 into b498bd2 on yujinakayama:master.

[yujinakayama]

Thanks for the PR, but there are a few concerns:

• I'm not sure whether this implementation is a right way, because the reason why guard-rubocop runs multiple times with your Vim is still unclear.
• With this change, guard-rubocop won't run on creation of a new file.

[killphi]

guard/guard#495 as to why run_on_modifications is better suited for certain editors

and for your second point, may I direct you to the Guard Wiki
If I understand run_on_additions correctly, it would solve the second concern

cheers

[yujinakayama]

@killphi Thanks for the information. I'll handle it.

[killphi]

Thanks for considering it.
I could've spared me some work, if I'd just looked at the pull requests beforehand :)

[yujinakayama]

Released 1.0.1.