fetch: Small code quality changes

fetch

@@ -1,8 +1,10 @@
 #!/bin/sh
-name="$(basename $0 .sh)"
-if $(which neofetch > /dev/null 2>&1); then
+name="$(basename "$0" .sh)"
+if command -v neofetch > /dev/null 2>&1; then
 	neofetch
-	scrot "$HOME/Pictures/Screenshots/neofetch-`date +%s`.png"
+	scrot "$HOME/Pictures/Screenshots/neofetch-$(date +%s).png"
 else
-	printf "$name: Neofetch is not installed; aborting\n"
+	# shellcheck disable=1117
+	printf "%s: Neofetch is not installed; aborting\n" \
+		"$name"
 fi