Core: fix typo in error message.

Signed-off-by: Piotr Sikora <piotrsikora@google.com>

src/os/unix/ngx_posix_init.c

diff --git a/src/os/unix/ngx_posix_init.c b/src/os/unix/ngx_posix_init.c
index bf3a310..61cc8ca 100644
--- a/src/os/unix/ngx_posix_init.c
+++ b/src/os/unix/ngx_posix_init.c
@@ -63,7 +63,7 @@
 
     if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
         ngx_log_error(NGX_LOG_ALERT, log, errno,
-                      "getrlimit(RLIMIT_NOFILE) failed)");
+                      "getrlimit(RLIMIT_NOFILE) failed");
         return NGX_ERROR;
     }