Documentation: don't reference non-existent 'git-cvsapplycommit'

Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Documentation/git-cvsexportcommit.txt

@@ -25,7 +25,7 @@ by default.
 
 Supports file additions, removals, and commits that affect binary files.
 
-If the commit is a merge commit, you must tell git-cvsapplycommit what parent
+If the commit is a merge commit, you must tell git-cvsexportcommit what parent
 should the changeset be done against. 
 
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