CONTRIBUTING.md: mention git add -p as a way to avoid spurious changes

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moneromooo-monero 2017-11-22 12:06:07 +00:00
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@ -25,6 +25,17 @@ modifying is encourgaged. Proper squashing should be done (eg, if
you're making a buggy patch, then a later patch to fix the bug,
both patches should be merged).
If you've made random unrelated changes (either because your editor
is annoying or you made them for other reasons), you can select
what changes go into the coming commit using git add -p, which
walks you through all the changes and asks whether or not to
include this particular change. This helps create clean patches
without any irrelevant changes. git diff will show you the changes
in your tree. git diff --cached will show what is currently staged
for commit. As you add hunks with git add -p, those hunks will
"move" from the git diff output to the git diff --cached output,
so you can see clearly what your commit is going to look like.
## Commits and Pull Requests
Commit messages should be sensible. That means a subject line that