[PATCH] examples/pipeline: fix build

[Ali Alnubani]

This patch fixes the following build failure seen on Ubuntu 16.04
with gcc 5.4.0 because of uninitialized variable:
  [..]
  examples/pipeline/cli.c:2853:9: error: 'session_id' may be used
    uninitialized in this function [-Werror=maybe-uninitialized]
  [..]

Fixes: 172254555f9f ("examples/pipeline: support packet mirroring")
Cc: cristian.dumitrescu at intel.com

Signed-off-by: Ali Alnubani <alialnu at nvidia.com>
---
 examples/pipeline/cli.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/pipeline/cli.c b/examples/pipeline/cli.c
index 0334616bd9..ad553f19ab 100644
--- a/examples/pipeline/cli.c
+++ b/examples/pipeline/cli.c
@@ -2782,7 +2782,7 @@ cmd_pipeline_mirror_session(char **tokens,
 {
 	struct rte_swx_pipeline_mirroring_session_params params;
 	struct pipeline *p;
-	uint32_t session_id;
+	uint32_t session_id = 0;
 	int status;
 
 	if (n_tokens != 11) {
-- 
2.25.1