Remove unused var, quote output var

vid2ani.cmd

@@ -12,8 +12,7 @@ SETLOCAL ENABLEDELAYEDEXPANSION
 :: Storing Paths
 SET input="%~1"
 SET vid="%~dpnx1"
-SET output=%~dpn1
-SET FILEPATH=%~dp1
+SET output="%~dpn1"
 
 :: Setting the path to the Working Directory
 SET WD=%TEMP%\VID2ANI
@@ -51,7 +50,7 @@ IF NOT "%~1" =="" (
 	IF "%~1" =="-d" SET "dither=%~2" & SHIFT
 	IF "%~1" =="-b" SET "bayerscale=%~2" & SHIFT
 	IF "%~1" =="-t" SET "filetype=%~2" & SHIFT
-	IF "%~1" =="-o" SET "output=%~dpnx2" & SHIFT
+	IF "%~1" =="-o" SET "output=%~dpn2" & SHIFT
 	IF "%~1" =="-s" SET "start_time=%~2" & SHIFT
 	IF "%~1" =="-e" SET "end_time=%~2" & SHIFT
 	IF "%~1" =="-c" SET "colormax=%~2" & SHIFT