Merge branch 'bc/ident-dot-is-no-longer-crud-letter' into next

Exclude "." from the set of characters to be removed from the
beginning and the end of the human-readable name.

* bc/ident-dot-is-no-longer-crud-letter:
  ident: don't consider '.' a crud

ident.c

@@ -203,7 +203,6 @@ void reset_ident_date(void)
 static int crud(unsigned char c)
 {
 	return  c <= 32  ||
-		c == '.' ||
 		c == ',' ||
 		c == ':' ||
 		c == ';' ||

t/t4203-mailmap.sh

@@ -466,7 +466,7 @@ test_expect_success 'gitmailmap(5) example output: example #1' '
 	Author Jane Doe <jane@laptop.(none)> maps to Jane Doe <jane@laptop.(none)>
 	Committer C O Mitter <committer@example.com> maps to C O Mitter <committer@example.com>
 
-	Author Jane D <jane@desktop.(none)> maps to Jane Doe <jane@desktop.(none)>
+	Author Jane D. <jane@desktop.(none)> maps to Jane Doe <jane@desktop.(none)>
 	Committer C O Mitter <committer@example.com> maps to C O Mitter <committer@example.com>
 	EOF
 	git -C doc log --reverse --pretty=format:"Author %an <%ae> maps to %aN <%aE>%nCommitter %cn <%ce> maps to %cN <%cE>%n" >actual &&
@@ -494,7 +494,7 @@ test_expect_success 'gitmailmap(5) example output: example #2' '
 	Author Jane Doe <jane@laptop.(none)> maps to Jane Doe <jane@example.com>
 	Committer C O Mitter <committer@example.com> maps to C O Mitter <committer@example.com>
 
-	Author Jane D <jane@desktop.(none)> maps to Jane Doe <jane@example.com>
+	Author Jane D. <jane@desktop.(none)> maps to Jane Doe <jane@example.com>
 	Committer C O Mitter <committer@example.com> maps to C O Mitter <committer@example.com>
 	EOF
 	git -C doc log --reverse --pretty=format:"Author %an <%ae> maps to %aN <%aE>%nCommitter %cn <%ce> maps to %cN <%cE>%n" >actual &&

t/t7518-ident-corner-cases.sh

@@ -20,10 +20,19 @@ test_expect_success 'empty name and missing email' '
 '
 
 test_expect_success 'commit rejects all-crud name' '
-	test_must_fail env GIT_AUTHOR_NAME=" .;<>" \
+	test_must_fail env GIT_AUTHOR_NAME=" ,;<>" \
 		git commit --allow-empty -m foo
 '
 
+test_expect_success 'commit does not strip trailing dot' '
+	author_name="Pat Doe Jr." &&
+	env GIT_AUTHOR_NAME="$author_name" \
+		git commit --allow-empty -m foo &&
+	git log -1 --format=%an >actual &&
+	echo "$author_name" >expected &&
+	test_cmp actual expected
+'
+
 # We must test the actual error message here, as an unwanted
 # auto-detection could fail for other reasons.
 test_expect_success 'empty configured name does not auto-detect' '