push: clarify rejection of update to non-commit-ish

diff --git a/levenshtein.c b/levenshtein.c
index a32f4cdc458f823f7e8754742d2f8e21b2aabff3..fc281597fd2fd5ad2299eab0848da99355e383fc 100644 (file)
--- a/levenshtein.c
+++ b/levenshtein.c
@@ -27,7 +27,7 @@
  *
  * It does so by calculating the costs of the path ending in characters
  * i (in string1) and j (in string2), respectively, given that the last
- * operation is a substition, a swap, a deletion, or an insertion.
+ * operation is a substitution, a swap, a deletion, or an insertion.
  *
  * This implementation allows the costs to be weighted:
  *