tests: fix missing space in --valgrind-extra option

Signed-off-by: Christian Hopps <chopps@labn.net>

diff --git a/tests/topotests/lib/topotest.py b/tests/topotests/lib/topotest.py
index 947ea196b6d3abccbb584e45a2536f509c99c853..6ee000b0f4fdad29c397db12cd10763c62d35a2c 100644 (file)
--- a/tests/topotests/lib/topotest.py
+++ b/tests/topotests/lib/topotest.py
@@ -1725,7 +1725,7 @@ class Router(Node):
                     )
                     if valgrind_extra:
                         cmdenv += (
-                            "--gen-suppressions=all --expensive-definedness-checks=yes"
+                            " --gen-suppressions=all --expensive-definedness-checks=yes"
                         )
                 elif daemon in strace_daemons or "all" in strace_daemons:
                     cmdenv = "strace -f -D -o {1}/{2}.strace.{0} ".format(