test: don't override user settings with default values

This fixes commit 671daf06b832940bb331242d07462c0f69be9618.

diff --git a/test/simulation/test.common b/test/simulation/test.common
index 9235a7739cdfbffd5443c3cd7b22268fa52efac6..dfb32187e913b4aaaccce72f9ef2bc7b114fe89f 100644 (file)
--- a/test/simulation/test.common
+++ b/test/simulation/test.common
@@ -78,7 +78,7 @@ default_client_max_min_out_interval=inf
 # Initialize test settings from their defaults
 for defoptname in ${!default_*}; do
        optname=${defoptname#default_}
-       declare "$optname"="${!defoptname}"
+       [ -z "${!optname}" ] && declare "$optname"="${!defoptname}"
 done
 
 test_start() {