tests: fix inverted condition in testsuite-58.sh

diff --git a/test/units/testsuite-58.sh b/test/units/testsuite-58.sh
index c58465356c2476a79aae929fe1e3cdc9cfa6be3b..20c2c5707366d48508805423d07985172eb14c2a 100755 (executable)
--- a/test/units/testsuite-58.sh
+++ b/test/units/testsuite-58.sh
@@ -932,7 +932,7 @@ Minimize=guess
 EOF
     done
 
-    if ! command -v mksquashfs >/dev/null; then
+    if command -v mksquashfs >/dev/null; then
         tee "$defs/root-squashfs.conf" <<EOF
 [Partition]
 Type=root-${architecture}