arch avidemux post-install fix permission error

post-install

alias ql='pacman -Ql'
~ $ ls -l xnew 
-rw-r--r-- 1 s s 315 Mar 24 15:30 xnew

~ $ ql qt5ct|grep t.so
qt5ct /usr/lib/qt/plugins/platformthemes/libqt5ct.so

~ $ ls -l `ql qt5ct|grep t.so|cut -d' ' -f2`
-rwxr-xr-x 1 root root 254920 Feb  4 13:25 /usr/lib/qt/plugins/platformthemes/libqt5ct.so

~ $ ls -l `ql avidemux-cli|grep ADM6avc`
-rwx---r-x 1 root root 7266632 Apr  6 14:30 /usr/lib/libADM6avcodec.so.57

~ $ stat --format '%a' xnew
644

qt5ct 755

avidemux 705

chmod 755 filename

chmod `ql avidemux-cli|grep ADM6|cut -d' ' -f2`

QT_AUTO_SCREEN_SCALE_FACTOR=[0|1] avidemux3_qt5
QT_SCALE_FACTOR=[numeric] avidemux3_qt5
QT_SCALE_FACTOR=0.9 avidemux3_qt5