git-check-ref-format.txt: typo, s/avoids/avoid/

Signed-off-by: Nguyễn Thái Ngọc Duy <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: pclouds

Documentation/git-check-ref-format.txt

@@ -60,7 +60,7 @@ Git imposes the following rules on how references are named:
 
 These rules make it easy for shell script based tools to parse
 reference names, pathname expansion by the shell when a reference name is used
-unquoted (by mistake), and also avoids ambiguities in certain
+unquoted (by mistake), and also avoid ambiguities in certain
 reference name expressions (see linkgit:gitrevisions[7]):
 
 . A double-dot `..` is often used as in `ref1..ref2`, and in some