suspend: fix dbus-send invocation

qubes-rpc/prepare-suspend

@@ -12,7 +12,7 @@ if [ -r /rw/config/suspend-module-blacklist ]; then
 fi
 
 if [ x"$action" == x"suspend" ]; then
-    dbus_send --system --print-reply          \
+    dbus-send --system --print-reply          \
         --dest=org.freedesktop.NetworkManager \ 
         /org/freedesktop/NetworkManager       \
         org.freedesktop.NetworkManager.Sleep boolean:true ||  \
@@ -33,8 +33,8 @@ else
     for mod in `cat /var/run/qubes/suspend-modules-loaded`; do
         modprobe $mod
     done
-    dbus_send --system --print-reply          \
-        --dest=org.freedesktop.NetworkManager \ 
+    dbus-send --system --print-reply          \
+        --dest=org.freedesktop.NetworkManager \
         /org/freedesktop/NetworkManager       \
         org.freedesktop.NetworkManager.Sleep boolean:false ||  \
         { [ -x /bin/systemctl ] && systemctl start NetworkManager.service; } || service qubes-core-netvm start