Ports: Improve consistency and quality of ports

- Replaced /Root with
- Improved documentation.
- Removed a few typos.
- Replaced  with
- Added brackets in some cases.

Most of the changes were reviewed and applied manually.

Ports/indent/package.sh

@@ -9,7 +9,7 @@ auth_type="sig"
 auth_opts="--keyring ./gnu-keyring.gpg indent-${version}.tar.gz.sig"
 
 post_install() {
-    man_dir="${SERENITY_BUILD_DIR}/Root/usr/local/share/man/man1/"
+    man_dir="${SERENITY_INSTALL_ROOT}/usr/local/share/man/man1/"
     run mkdir -p "${man_dir}"
     run cp man/indent.1 "${man_dir}"
 }