Improve 1992/gson/try.sh

Don't exit if it can't find a 'normal' dictionary file, skipping the
creation of one from mkdict.sh. Just use the one generated from
mkdict.sh if no other file can be opened (which most likely won't happen
but it can happen as not all systems have /usr/share/dict/words and the
others are unlikely in modern systems).

1992/gson/try.sh

@@ -35,14 +35,7 @@ fi
 
 # safety check that DICT is not empty and is a readable file
 #
-if [[ -z "$DICT" || ! -f "$DICT" || ! -r "$DICT" ]]; then
+if [[ -n "$DICT" && -f "$DICT" && -r "$DICT" ]]; then
-    echo "No dictionary file found, try specifying one like:" 1>&2
-    echo 1>&2
-    echo "  DICT=dict ./try.sh" 1>&2
-    echo 1>&2
-    exit 1
-fi
-
     echo "$ ./ag free software foundation < $DICT" 1>&2
     read -r -n 1 -p "Press any key to continue (space = next page, q = quit): "
     echo 1>&2
@@ -77,6 +70,7 @@ echo "$ ./ag paul e tsongas < $DICT" 1>&2
     read -r -n 1 -p "Press any key to continue (space = next page, q = quit): "
     echo 1>&2
     ./ag paul e tsongas < "$DICT" 2>/dev/null | less -rEXF
+fi
 
 # now try making our own dictionary with mkdict.sh:
 #