Remove 'while crawling' from detection options

These filters are primarily used during detection,
not crawling.

Author: john-shaffer

src/CoreOptions.php

@@ -253,7 +253,7 @@ public static function optionSpecs() : array {
                 'fileExtensionsToIgnore',
                 '1',
                 'File Extensions to Ignore',
-                'Files with these extensions will be ignored while crawling.',
+                'Files with these extensions will be ignored.',
                 implode(
                     "\n",
                     [
@@ -290,7 +290,7 @@ public static function optionSpecs() : array {
                 'filenamesToIgnore',
                 '1',
                 'Directory and File Names to Ignore',
-                'Directories and files with these names will be ignored while crawling.',
+                'Directories and files with these names will be ignored.',
                 implode(
                     "\n",
                     [