Re-word test ordering comment

Author: mk-mxp

exercises/line-up/canonical-data.json

@@ -3,8 +3,8 @@
   "comments": [
     "Names are chosen without Unicode characters to keep the exercise simple.",
     "",
-    "The tests are ordered starting with the most common case and coming to",
-    "more special cases later on."
+    "The tests are ordered starting with small regular cases and coming to",
+    "bigger and irregular cases later on."
   ],
   "cases": [
     {