Working around tar's 99-char limit in file names

configure.in:
  this tree has version 5.1.23, release clone has version 5.1.23a-maria-alpha;
  it mostly matters because it makes the file's name 1 byte shorter
  and thus below tar's 99-chars limit...

configure.in

@@ -10,7 +10,7 @@ AC_CANONICAL_SYSTEM
 #
 # When changing major version number please also check switch statement
 # in mysqlbinlog::check_master_version().
-AM_INIT_AUTOMAKE(mysql, 5.1.23a-maria-alpha)
+AM_INIT_AUTOMAKE(mysql, 5.1.24-maria-alpha)
 AM_CONFIG_HEADER([include/config.h:config.h.in])
 
 PROTOCOL_VERSION=10