ignore EINVAL from setsockopt() on Solaris
diff --git a/src/core/ngx_connection.c b/src/core/ngx_connection.c
index f48eefb..804ab09 100644
--- a/src/core/ngx_connection.c
+++ b/src/core/ngx_connection.c
@@ -782,12 +782,16 @@
 {
     ngx_uint_t  level;
 
-    if (err == NGX_ECONNRESET
-        && c->log_error == NGX_ERROR_IGNORE_ECONNRESET)
-    {
+    if (err == NGX_ECONNRESET && c->log_error == NGX_ERROR_IGNORE_ECONNRESET) {
         return 0;
     }
 
+#if (NGX_SOLARIS)
+    if (err == NGX_EINVAL && c->log_error == NGX_ERROR_IGNORE_EINVAL) {
+        return 0;
+    }
+#endif
+
     if (err == 0
         || err == NGX_ECONNRESET
 #if !(NGX_WIN32)
@@ -803,6 +807,7 @@
     {
         switch (c->log_error) {
 
+        case NGX_ERROR_IGNORE_EINVAL:
         case NGX_ERROR_IGNORE_ECONNRESET:
         case NGX_ERROR_INFO:
             level = NGX_LOG_INFO;