res_config_mysql: Fix Setting The Column Name Incorrectly

When support for a realtime sorcery module was added in revision 386731, the
wrong property was accidentally used for setting the column name to be updated
in the database table.  This patch fixes the typo.

(closes issue ASTERISK-23177)
Reported by: Denis
Tested by: Denis
Patches:
    asterisk-23177-use-field-name.diff by Michael L. Young (license 5026)
........

Merged revisions 406311 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@406312 65c4cc65-6c06-0410-ace0-fbb531ad65f3

addons/res_config_mysql.c

@@ -613,7 +613,7 @@ static int update_mysql(const char *database, const char *tablename, const char
 		}
 
 		ESCAPE_STRING(buf, field->value);
-		ast_str_append(&sql, 0, ", `%s` = '%s'", field->value, ast_str_buffer(buf));
+		ast_str_append(&sql, 0, ", `%s` = '%s'", field->name, ast_str_buffer(buf));
 
 		/* If the column length isn't long enough, give a chance to lengthen it. */
 		if (strncmp(column->type, "char", 4) == 0 || strncmp(column->type, "varchar", 7) == 0) {