Change wording and default

DATabase/DATabase.cs

@@ -811,7 +811,7 @@ Make a selection:
 Make a selection:
 
     1) File or folder to process" + (input != "" ? ":\n\t" + input : "") + @"
-    2) Root folder for reference" + (root != "" ? ":\n\t" + root : "") + @"
+    2) Set the root directory for trimming calculation" + (root != "" ? ":\n\t" + root : "") + @"
     3) " + (forceunpack ? "Remove 'forcepacking=\"unzip\"' from output" : "Add 'forcepacking=\"unzip\"' to output") + @"
     4) " + (rename ? "Keep all game names" : "Rename all games to '!'") + @"
     5) Process the file or folder

DATabase/TrimMerge.cs

@@ -45,8 +45,6 @@ namespace SabreTools
 				return false;
 			}
 
-			_path = (_path == "" ? Environment.CurrentDirectory : _path);
-
 			// We want the full path of the file, just in case
 			_filename = Path.GetFullPath(_filename);
 

SabreHelper/Build.cs

@@ -132,7 +132,7 @@ Options:
 	system=			System ID
 	source=			Source ID
   -tm, --trim-merge	Consolidate DAT into a single game and trim entries
-	-rd=, --root-dir=	Set the directory name for path size
+	-rd=, --root-dir=	Set the root directory for trimming calculation
 	-nr, --no-rename	Keep game names instead of using '!'
 	-df, --disable-force	Disable forceunzipping