meson - evas loader confg install script - make it /bin/sh compliant

meson/evas_loader_conf.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/dash
 
 original_loader=$1
 filename="$(basename $original_loader)"
@@ -8,8 +8,7 @@ loader_dir="$(dirname $original_loader)"
 loader="$(basename $original_loader)"
 loader_name="$(echo $original_name | cut -f 1 -d '.')"
 
-if [ `echo -n ${original_loader} | tail -c 3` == "$ext" ]
-  then
+if test `echo -n ${original_loader} | tail -c 3` = "$ext"; then
   mv "$DESTDIR"/"$original_loader" "$DESTDIR"/"$loader_dir"/"$original_name"
 fi