brew style --fix, clarify comment about copying old path

Author: aguthrie

Formula/p/[email protected]

@@ -272,11 +272,9 @@ def post_install
 
     # fix pear config to install outside cellar
     pear_path = HOMEBREW_PREFIX/"share/pear@#{version.major_minor}"
-    # copy over non-versioned pear path if it exists and the versioned path does not
+    # copy non-versioned pear path so existing installs continue to work
     non_versioned_pear_path = HOMEBREW_PREFIX/"share/pear"
-    if non_versioned_pear_path.exist? && !pear_path.exist?
-      cp_r non_versioned_pear_path, pear_path
-    end
+    cp_r non_versioned_pear_path, pear_path if non_versioned_pear_path.exist? && !pear_path.exist?
 
     cp_r pkgshare/"pear/.", pear_path
     {