testing bash functions use $VISUAL

functions.sh

@@ -1,19 +1,19 @@
 t() {
     haxe -cp hank -lib utest -lib hscript hxml/$1.hxml --interp > test-output.txt
-    vim test-output.txt
+    $VISUAL test-output.txt
 }
 
 ta() {
     haxe -cp hank -lib utest -lib hscript hxml/all-platforms.hxml > test-output.txt
-    vim test-output.txt
+    $VISUAL test-output.txt
 }
 
 tas() {
     haxe -D stop_on_error -cp hank -lib utest -lib hscript hxml/all-platforms.hxml > test-output.txt
-    vim test-output.txt
+    $VISUAL test-output.txt
 }
 
 debug() {
     haxe -js js/hank.js hxml/all.hxml
     chromium-browser js/index.html
-}
+}