Changed shebangs from dash to system shell

ffconv-a

@@ -1,3 +1,3 @@
-#!/bin/dash
+#!/bin/sh
 # Convert audio files recursively to opus
 find ./ -type f \( -iname \*.flac -o -iname \*.mp3 -o -iname \*.ogg -o -iname \*.m4a -o -iname \*.wav \) -exec sh -c 'i="{}"; ffmpeg -y -i "$i" "${i%.*}.opus" && rm -f "$i"' \;

ffconv-v

@@ -1,3 +1,3 @@
-#!/bin/dash
+#!/bin/sh
 ## Convert video files to mp4 x265 codec
 find ./ -type f \( -iname \*.mkv -o -iname \*.mp4 -o -iname \*.webm -o  -iname \*.avi \) -exec sh -c 'i="{}"; ffmpeg -y -i "$i" -vf scale=1280x720 -c:v hevc -vtag hvc1 -c:a copy -crf 18 -preset ultrafast "${i%.*}-x265.mp4" && rm -f "$i"' \;

mac2dos

@@ -1,2 +1,2 @@
-#!/usr/bin/env sh
+#!/bin/sh
 perl -pi -e 's/\r\n|\n|\r/\r\n/g' $1

mkv-cat

@@ -1,4 +1,4 @@
-#!/bin/dash
+#!/bin/sh
 #Concatenate mkvs
 for f in ./*.mkv; do echo "file '$f'" >> list.txt; done
 && ffmpeg -f concat -safe 0 -i list.txt -c copy output.mkv