Corrected spelling of error message (ticket #136).

src/http/modules/ngx_http_ssi_filter_module.c

diff --git a/src/http/modules/ngx_http_ssi_filter_module.c b/src/http/modules/ngx_http_ssi_filter_module.c
index 0d86e69..f47cb42 100644
--- a/src/http/modules/ngx_http_ssi_filter_module.c
+++ b/src/http/modules/ngx_http_ssi_filter_module.c
@@ -714,7 +714,7 @@
 
                 if (ctx->params.nelts > NGX_HTTP_SSI_MAX_PARAMS) {
                     ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
-                                  "too many SSI command paramters: \"%V\"",
+                                  "too many SSI command parameters: \"%V\"",
                                   &ctx->command);
                     goto ssi_error;
                 }