send-email: further document missing sendmail aliases functionality

Sendmail aliases[1] supports expansion to a file ("/path/name") or pipe ("|command"), as well as file inclusion (":include: /path/name"), however, our implementation does not support such functionality. [1]: https://www.freebsd.org/cgi/man.cgi?query=aliases&sektion=5 Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Eric Sunshine committed May 31, 2015 at 18:29 UTC 5c3494ed880b56eb2e487fd5504bc66674151bae
1 file changed +3
Documentation/git-send-email.txt
+3
@@ -396,6 +396,9 @@ sendmail;;
396 contain a `"` symbol are ignored.
397 * Line continuations are not supported: lines that start with
398 whitespace characters, or end with a `\` symbol are ignored.
399 +* Redirection to a file (`/path/name`) or pipe (`|command`) is not
400 + supported.
401 +* File inclusion (`:include: /path/name`) is not supported.
402 * Warnings are printed on the standard error output for any
403 explicitly unsupported constructs, and any other lines that are not
404 recognized by the parser.