Removed zero termination of shm zone names.

It was added in r2717 and no longer needed since r2721,
where the termination was added to ngx_shm_alloc() and
ngx_init_zone_pool().  So then it only corrupts error
messages about ivalid zones.

src/http/modules/ngx_http_ssl_module.c

@@ -661,7 +661,6 @@ ngx_http_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
             for (j = sizeof("shared:") - 1; j < value[i].len; j++) {
                 if (value[i].data[j] == ':') {
-                    value[i].data[j] = '\0';
                     break;
                 }
 

src/http/ngx_http_file_cache.c

@@ -1674,8 +1674,6 @@ ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
             p = (u_char *) ngx_strchr(name.data, ':');
 
             if (p) {
-                *p = '\0';
-
                 name.len = p - name.data;
 
                 p++;