Merging r4132, r4134, r4143, r4183, r4191, r4199: Various fixes related to error messages: *) Removed old warning that suggested to use "server_name_in_redirect off" (now the default) in place of no longer supported "server_name *". *) Fixing directive name in error message if types hash size is not enough. *) Replaced "can not" with "cannot" and "could not" in a bunch of places. Fixed nearby grammar errors. *) Overhauled error messages.

--- a/src/http/modules/ngx_http_log_module.c
+++ b/src/http/modules/ngx_http_log_module.c
@@ -960,7 +960,7 @@ buffer:
 
         if (log->script) {
             ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
-                               "buffered logs can not have variables in name");
+                               "buffered logs cannot have variables in name");
             return NGX_CONF_ERROR;
         }