[njs] Fixed compilation by gcc 4.2.

[Dmitry Volyntsev]

details:   http://hg.nginx.org/njs/rev/dc7cfa57a9f4
branches:  
changeset: 562:dc7cfa57a9f4
user:      Dmitry Volyntsev <xeioex at nginx.com>
date:      Fri Jul 20 15:59:59 2018 +0300
description:
Fixed compilation by gcc 4.2.

diffstat:

 nxt/nxt_dtoa.c |  3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diffs (13 lines):

diff -r 0f9c060a0198 -r dc7cfa57a9f4 nxt/nxt_dtoa.c
--- a/nxt/nxt_dtoa.c	Thu Jul 19 18:11:52 2018 +0300
+++ b/nxt/nxt_dtoa.c	Fri Jul 20 15:59:59 2018 +0300
@@ -106,6 +106,9 @@ nxt_grisu2_gen(nxt_diyfp_t W, nxt_diyfp_
 
     p = start;
 
+    /* GCC 4.2 complains about uninitialized d. */
+    d = 0;
+
     kappa = nxt_dec_count(p1);
 
     while (kappa > 0) {