shellcheck fixes

usr/lib/archboot/common.sh

@@ -109,7 +109,7 @@ _progress_wait() {
             _progress "${2}" "${3}"
         fi
         _COUNT="$((_COUNT+1))"
-        read -t "${4}"
+        read -r -t "${4}"
     done
 }
 
@@ -311,11 +311,11 @@ _cachedir_check() {
 _pacman_keyring() {
     # pacman-key process itself
     while pgrep -x pacman-key &>"${_NO_LOG}"; do
-        read -t 1
+        read -r -t 1
     done
     # gpg finished in background
     while pgrep -x gpg &>"${_NO_LOG}"; do
-        read -t 1
+        read .r -t 1
     done
     if [[ -e /etc/systemd/system/pacman-init.service ]]; then
         systemctl stop pacman-init.service

usr/lib/archboot/update/desktop.sh

@@ -114,6 +114,7 @@ _prepare_browser() {
         fi
         _firefox_flags
     else
+        #shellcheck disable=SC2046
         pacman -Q firefox &>"${_NO_LOG}" && pacman -R --noconfirm $(pacman -Q | grep firefox | cut -d ' ' -f 1) &>"${_LOG}"
         pacman -Q chromium &>"${_NO_LOG}" || _run_pacman chromium
         _chromium_flags