[PATCH] fixup! Documentation/i18n: quote double-dash for AsciiDoc

The double-dash in the title should be escaped, too, to avoid spurious
em dashes in the header:

	.TH "GIT\-SH\-I18N\(emENVSUB" "1" "06/26/2011" "Git 1\&.7\&.6" "Git Manual"

AsciiDoc 8.6.4 with DocBook XSL 1.76.0-RC1 copes fine and writes
"GIT\-SH\-I18N\-\-ENVSUB" even without this change, which is why it
was missed before.

Signed-off-by: Jonathan Nieder <redacted>
---
 Documentation/git-sh-i18n--envsubst.txt |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/git-sh-i18n--envsubst.txt b/Documentation/git-sh-i18n--envsubst.txt
index 6e3a9539..5c3ec327 100644
--- a/Documentation/git-sh-i18n--envsubst.txt
+++ b/Documentation/git-sh-i18n--envsubst.txt

@@ -1,5 +1,5 @@
-git-sh-i18n--envsubst(1)
-========================
+git-sh-i18n{litdd}envsubst(1)
+=============================
 
 NAME
 ----

-- 
1.7.6