[PATCH RFC3.5 03/12] send-email: Interpret --smtp-server "" as "use a default".

[Michael Witten <mfwitten@gmail.com>]

Why not? It's at least useful for testing.

Signed-off-by: Michael Witten <mfwitten@gmail.com>
---
 Documentation/git-send-email.txt |    4 +++-
 git-send-email.perl              |    2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt
index 071e9bf..ae01632 100644
--- a/Documentation/git-send-email.txt
+++ b/Documentation/git-send-email.txt
@@ -132,7 +132,9 @@ user is prompted for a password while the input is masked for privacy.
 	be specified by the 'sendemail.smtpserver' configuration
 	variable; the built-in default is `/usr/sbin/sendmail` or
 	`/usr/lib/sendmail` if such a program is available, or
-	`localhost` otherwise.
+	`localhost` otherwise. Also, a built-in default is used if
+	`<host>` or 'sendemail.smtpserver' is the empty string (for
+	example, if '--smtp-server ""' is specified on the command line).
 
 --smtp-server-port=<port>::
 	Specifies a port different from the default port (SMTP
diff --git a/git-send-email.perl b/git-send-email.perl
index 1a20b2c..5e669c7 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -675,7 +675,7 @@ if (defined $initial_reply_to) {
 	$initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
 }
 
-if (defined $smtp_server) {
+if (defined $smtp_server && $smtp_server ne '') {
 
 	$smtp_server_is_a_command = ($smtp_server =~ m{^/});
 
-- 
1.6.2.2.479.g2aec