general code cleanup on lbmk shell scripts

in update/blobs/download, i saw instances where
appdir was being deleted with rm -r, but the more
appropriate command would rm -Rf. this is now fixed.

other than that, i've mostly just simplified a bunch
of if statements and consolidated some duplicated
logic (e.g. if/else block for dependencies in
build_dependencies() of update/blobs/download

one or two functions and/or variables have been
renamed, for greater clarity in the code, also
removed a few messages that were redundant

used printf instead of echo, in a few places, also
fixed up the indentation in a few places

Signed-off-by: Leah Rowe <leah@libreboot.org>

resources/scripts/build/grub/payload

@@ -53,18 +53,15 @@ main()
 build_grub_payloads()
 {
 	keylayoutfile=${1}
+	[ -f "${keylayoutfile}" ] || continue
 
-	if [ ! -f "${keylayoutfile}" ]; then
-		continue
-	fi
 	keymap="${keylayoutfile##${grubcfgsdir}/keymap/}"
 	keymap="${keymap%.gkb}"
 
 	build_grub_elf "${keylayoutfile}"
 	create_grub_config
 
-	printf "Created 'elf/grub/grub_%s.elf' and configs.'\n" \
-			"${keymap}"
+	printf "Created 'elf/grub/grub_%s.elf' and configs.'\n" "${keymap}"
 }
 
 build_grub_elf()
@@ -75,24 +72,22 @@ build_grub_elf()
 	gcfg="${gcfg}/config/grub_memdisk.cfg"
 	grubk="/boot/grub/layouts/${keymap}.gkb=${keylayoutfile}"
 	grub/grub-mkstandalone \
-			--grub-mkimage="grub/grub-mkimage" \
-			-O i386-coreboot \
-			-o elf/grub/grub_${keymap}.elf \
-			-d grub/grub-core/ \
-			--fonts= --themes= --locales=  \
-			--modules="${grub_modules}" \
-			--install-modules="${grub_install_modules}" \
-			${gcfg} ${grubk}
+	    --grub-mkimage="grub/grub-mkimage" \
+	    -O i386-coreboot \
+	    -o elf/grub/grub_${keymap}.elf \
+	    -d grub/grub-core/ \
+	    --fonts= --themes= --locales=  \
+	    --modules="${grub_modules}" \
+	    --install-modules="${grub_install_modules}" \
+	    ${gcfg} ${grubk}
 }
 
 create_grub_config()
 {
-	sed "s/usqwerty/${keymap}/" \
-			< ${grubcfgsdir}/config/grub.cfg \
-			> elf/grub/grub_${keymap}.cfg
-	sed "s/grubtest.cfg/grub.cfg/" \
-			< elf/grub/grub_${keymap}.cfg \
-			> elf/grub/grub_${keymap}_test.cfg
+	sed "s/usqwerty/${keymap}/" < ${grubcfgsdir}/config/grub.cfg \
+	    > elf/grub/grub_${keymap}.cfg
+	sed "s/grubtest.cfg/grub.cfg/" < elf/grub/grub_${keymap}.cfg \
+	    > elf/grub/grub_${keymap}_test.cfg
 }
 
 main $@