Add MMN bump for AP_REG_DOLLAR_ENDONLY, ap_regcomp_get_default_cflags

ap_regcomp_set_default_cflags and ap_regcomp_default_cflag_by_name


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1824470 13f79535-47bb-0310-9956-ffa450edef68