fix the calculation of j in jaro_winkler to avoid overrunning ying/yang
diff --git a/jellyfish/_jellyfish.py b/jellyfish/_jellyfish.py
index e3777e3..b072ac9 100644
--- a/jellyfish/_jellyfish.py
+++ b/jellyfish/_jellyfish.py
@@ -82,7 +82,7 @@
# winkler modification: continue to boost if strings are similar
if winklerize and weight > 0.7 and ying_len > 3 and yang_len > 3:
# adjust for up to first 4 chars in common
- j = max(min_len, 4)
+ j = min(min_len, 4)
i = 0
while i < j and ying[i] == yang[i] and ying[i]:
i += 1
