Fix another non-raw \w

Author: Rob Speer

ftfy/badness.py

@@ -128,7 +128,7 @@ def _make_weirdness_regex():
     '[ÂÃĂ][\x80-\x9f€ƒ‚„†‡ˆ‰‹Œ“•˜œŸ¡¢£¤¥¦§¨ª«¬¯°±²³µ¶·¸¹º¼½¾¿ˇ˘˝]|'
     # Characters we have to be a little more cautious about if they're at
     # the end of a word, but totally okay to fix in the middle
-    '[ÂÃĂ][›»‘”©™]\w|'
+    r'[ÂÃĂ][›»‘”©™]\w|'
     # Similar mojibake of low-numbered characters in MacRoman. Leaving out
     # most mathy characters because of false positives, but cautiously catching
     # "√±" (mojibake for "ñ") and "√∂" (mojibake for "ö") in the middle of a