core: fix warnings in exec

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>

diff --git a/lib/core/exec.nit b/lib/core/exec.nit
index 76d9d63..6c03c7f 100644 (file)
--- a/lib/core/exec.nit
+++ b/lib/core/exec.nit
@@ -98,6 +98,7 @@ class Process
                var args = new FlatBuffer
                var l = 1 # Number of elements in args
                args.append(command)
+               var arguments = self.arguments
                if arguments != null then
                        for a in arguments do
                                args.add('\0')