Quiet some additional pre-commit hooks

These aren't terribly interesting checks. Only display them if they
fail.

Change-Id: Id42dc42edd85a2705c058fc76af89a3648921ba0
Reviewed-on: http://gerrit.causes.com/45339
Tested-by: jenkins <jenkins@brigade.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>

Author: sds

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Overcommit Changelog
 
+## master (unreleased)
+
+* Change `HardTabs`, `MergeConflicts`, and `PryBinding` pre-commit hooks to
+  be `quiet` by default
+
 ## 0.20.0
 
 * Add `--run` flag which runs all configured pre-commit hooks against the

config/default.yml

@@ -113,6 +113,7 @@ PreCommit:
 
   HardTabs:
     description: 'Checking for hard tabs'
+    quiet: true
     exclude:
       - '**/*.go'
       - '**/Makefile'
@@ -160,9 +161,11 @@ PreCommit:
 
   MergeConflicts:
     description: 'Checking for merge conflicts'
+    quiet: true
 
   PryBinding:
     description: 'Checking for instances of binding.pry'
+    quiet: true
     include:
       - '**/*.rb'
       - '**/*.rake'