Trailing whitespace fix.

src/http/modules/ngx_http_geo_module.c

diff --git a/src/http/modules/ngx_http_geo_module.c b/src/http/modules/ngx_http_geo_module.c
index 26f4e57..d757a9b 100644
--- a/src/http/modules/ngx_http_geo_module.c
+++ b/src/http/modules/ngx_http_geo_module.c
@@ -191,9 +191,9 @@
 
     if (ctx->u.high.low) {
         addr = ngx_http_geo_addr(r, ctx);
-    
+
         range = ctx->u.high.low[addr >> 16];
-    
+
         if (range) {
             n = addr & 0xffff;
             do {