fix in unsettin variables ('unset $var' should be 'unset var')

diff --git a/firma b/firma
index 0e389fb0d5b44ed937ffc28a0c69e27421cf963a..964c552d077a14cdea23ba9b251be9164691023e 100755 (executable)
--- a/firma
+++ b/firma
@@ -898,10 +898,10 @@ esac
 
 # erase all global arrays and variables
 for ARRAY in $GLOBAL_ARRAYS; do
-  unset $ARRAY
+  unset ARRAY
 done
 
 for VAR in $GLOBAL_VARS; do
-  unset $VAR
+  unset VAR
 done