Fix formatting of example blocks

With the new stylesheet example blocks (delimited with ====) are
rendered as rather intrusive boxes with large padding in yellow
and grey.

This patch replaces the example blocks with simple code blocks
(delimited with ----) that better match the overall style of the
documentation.

Change-Id: Id95387cdb153332c2066e2d5e378697647dbca52
Signed-off-by: Michael Ochmann <michael.ochmann@sap.com>

Documentation/cmd-gsql.txt

diff --git a/Documentation/cmd-gsql.txt b/Documentation/cmd-gsql.txt
index d55ba2b..d2eb783 100644
--- a/Documentation/cmd-gsql.txt
+++ b/Documentation/cmd-gsql.txt
@@ -41,7 +41,7 @@
 == EXAMPLES
 To manually correct a user's SSH user name:
 
-====
+----
 	$ ssh -p 29418 review.example.com gerrit gsql
 	Welcome to Gerrit Code Review v2.0.25
 	(PostgreSQL 8.3.8)
@@ -54,7 +54,7 @@
 	Bye
 
 	$ ssh -p 29418 review.example.com gerrit flush-caches --cache sshkeys --cache accounts
-====
+----
 
 GERRIT
 ------