mytarc/mytarx: Use .sha256 extension for checksum

Replace .sha256sum extension with just .sha256.
Signed-off-by: Cédric Marie <cedric@hjuvi.fr.eu.org>

scripts/mytarc

@@ -23,7 +23,7 @@ print_usage()
     printf "  -n  don't compress (create .tar instead of .tar.xz)\n"
     printf "  -t  timestamp output file\n"
     printf "  -e  encrypt output file with password\n"
-    printf "  -s  create a .sha256sum file\n"
+    printf "  -s  create a .sha256 file\n"
 }
 
 option_dontcompress=0
@@ -75,7 +75,7 @@ fi
 chmod 444 $output_file
 printf "\033[1mOutput file:\033[0m $output_file\n"
 if [ $option_sha256sum -eq 1 ]; then
-    sha256sum $output_file > $output_file.sha256sum
-    chmod 444 $output_file.sha256sum
-    printf "           + $output_file.sha256sum\n"
+    sha256sum $output_file > $output_file.sha256
+    chmod 444 $output_file.sha256
+    printf "           + $output_file.sha256\n"
 fi

scripts/mytarx

@@ -3,7 +3,7 @@
 # mytarx - Extract an archive (.tar[.xz] file)
 # This file is part of Painted Shell - Shell configuration and scripts.
 #
-# Written in 2013-2019 by Cédric Marie
+# Written in 2013-2020 by Cédric Marie
 #
 # To the extent possible under law, the author(s) have dedicated all copyright
 # and related and neighboring rights to this software to the public domain
@@ -35,9 +35,9 @@ shift $(($OPTIND - 1))
 option_crypt=0
 
 if [ "$1" = "" -o ! -f "$1" ]; then print_usage; exit 1; fi
-if [ -f "${1}.sha256sum" ]; then
+if [ -f "${1}.sha256" ]; then
     printf "\033[1mCheck sha256sum...\033[0m\n"
-    sha256sum -c ${1}.sha256sum || exit 1;
+    sha256sum -c ${1}.sha256 || exit 1;
 fi
 file=${1%.enc}
 if [ "$file" != "$1" ]; then