[tests] Stop reading from server on \n\n

The server no longer hangs up after sending its response, so stop
reading once it's finished writing its response.

Send stderr to /dev/null to mask the "write: Broken pipe" output.

1 files changed, 2 insertions, 2 deletions

diff --git a/tests/clientsh.bash b/tests/clientsh.bash
index 401a4a9..c65a107 100755
--- a/tests/clientsh.bash
+++ b/tests/clientsh.bash
@@ -108,8 +108,8 @@ send_cmd() {
     # It would have been nice to use /dev/tcp/fe80::%w0/970 instead of
     # nc, but we need to use a specific source port.
     eval $(
-	printf $REQ | nn -q $n ncat -p 970 fe80::%wg0 970 |
-	    while read -r line; do
+	printf $REQ | nn -q $n ncat -p 970 fe80::%wg0 970 2>/dev/null |
+	    while read -r line && [[ -n $line ]] ; do
 		key="${line%%=*}"
 		value="${line#*=}"
 		case "$key" in