*: fix typos

These typos were found while searching the codebase for gendered
pronouns. In the case of t9300-fast-import.sh, remove a confusing
comment that is unnecessary to the understanding of the test.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

config.c

@@ -2834,7 +2834,7 @@ static void maybe_remove_section(struct config_store_data *store,
 	begin = store->parsed[i].begin;
 
 	/*
-	 * Next, make sure that we are removing he last key(s) in the section,
+	 * Next, make sure that we are removing the last key(s) in the section,
 	 * and that there are no comments that are possibly about the current
 	 * section.
 	 */

t/t9300-fast-import.sh

@@ -1538,7 +1538,6 @@ test_expect_success 'O: comments are all skipped' '
 	commit refs/heads/O1
 	# -- ignore all of this text
 	committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
-	# $GIT_COMMITTER_NAME has inserted here for his benefit.
 	data <<COMMIT
 	dirty directory copy
 	COMMIT