Appease Stickler-bot

So... originally no changes were made to the code, but Stickler-bot was unimpressed, so I've followed its suggestions.

Signed-off-by: Rob Gill <rrobgill@protonmail.com>

automated install/uninstall.sh

@@ -57,10 +57,10 @@ if [ -x "$(command -v rpm)" ]; then
   # Fedora Family
   PKG_REMOVE="${PKG_MANAGER} remove -y"
   package_check() {
-    rpm -qa | grep ^$1- > /dev/null
+    rpm -qa | grep "^$1-" > /dev/null
   }
   package_cleanup() {
-    ${SUDO} ${PKG_MANAGER} -y autoremove
+    "${SUDO}" "${PKG_MANAGER}" -y autoremove
   }
 elif [ -x "$(command -v apt-get)" ]; then
   # Debian Family
@@ -69,8 +69,8 @@ elif [ -x "$(command -v apt-get)" ]; then
     dpkg-query -W -f='${Status}' "$1" 2>/dev/null | grep -c "ok installed"
   }
   package_cleanup() {
-    ${SUDO} ${PKG_MANAGER} -y autoremove
-    ${SUDO} ${PKG_MANAGER} -y autoclean
+    "${SUDO}" "${PKG_MANAGER}" -y autoremove
+    "${SUDO}" "${PKG_MANAGER}" -y autoclean
   }
 else
   echo -e "  ${CROSS} OS distribution not supported"
@@ -81,8 +81,7 @@ removeAndPurge() {
   # Purge dependencies
   echo ""
   for i in "${DEPS[@]}"; do
-    package_check ${i} > /dev/null
-    if [[ "$?" -eq 0 ]]; then
+    if package_check "${i}" > /dev/null; then
       while true; do
         read -rp "  ${QST} Do you wish to remove ${COL_WHITE}${i}${COL_NC} from your system? [Y/N] " yn
         case ${yn} in