fix compiler warning on Debian wheezy (gcc 4.7.2)

dumpcap.c:193:10: error: ignoring return value of ‘write’, declared with
attribute warn_unused_result [-Werror=unused-result]

for some reason, using (void)write(fd, ...) did not do the trick

svn path=/trunk/; revision=51476

1 files changed, 2 insertions, 1 deletions

diff --git a/dumpcap.c b/dumpcap.c
index 582821c799..cdf89c73cf 100644
--- a/dumpcap.c
+++ b/dumpcap.c
@@ -184,13 +184,14 @@ void
 enable_kernel_bpf_jit_compiler(void)
 {
     int fd;
+    ssize_t written _U_;
     static const char file[] = "/proc/sys/net/core/bpf_jit_enable";
 
     fd = open(file, O_WRONLY);
     if (fd < 0)
         return;
 
-    write(fd, "1", strlen("1"));
+    written = write(fd, "1", strlen("1"));
 
     close(fd);
 }