diff --git a/Makefile b/Makefile
index 1eee35c..24fda89 100644
--- a/Makefile
+++ b/Makefile
@@ -9,11 +9,11 @@ TAG ?= latest
 
 # The order is important for compilation.
 for_compile := \
+    apheleia-utils.el \
     apheleia-formatter-context.el \
     apheleia-log.el \
     apheleia-formatters.el \
     apheleia-rcs.el \
-    apheleia-utils.el \
     apheleia.el
 for_checkdoc := *.el
 for_checkindent := *.el
diff --git a/apheleia-formatter-context.el b/apheleia-formatter-context.el
index 769f2ef..809d0d1 100644
--- a/apheleia-formatter-context.el
+++ b/apheleia-formatter-context.el
@@ -1,5 +1,7 @@
 ;;; apheleia-formatter-context.el --- Formatter ctx -*- lexical-binding: t -*-
 
+;; SPDX-License-Identifier: MIT
+
 ;;; Commentary:
 
 ;; This file defines a helper for encapsulating common state for a formatter
diff --git a/apheleia-formatters.el b/apheleia-formatters.el
index 8ee1adb..66b0e0c 100644
--- a/apheleia-formatters.el
+++ b/apheleia-formatters.el
@@ -1,5 +1,7 @@
 ;;; apheleia-formatters.el --- Run formatters -*- lexical-binding: t -*-
 
+;; SPDX-License-Identifier: MIT
+
 ;;; Commentary:
 
 ;; This module defines a series of functions for running a formatter process
@@ -552,7 +554,7 @@ command succeeds provided that its exit status is 0."
                   (format " *apheleia-%s-stdout*" name)))
          (stderr (generate-new-buffer
                   (format " *apheleia-%s-stderr*" name)))
-         (log-name (apheliea-log--buffer-name name)))
+         (log-name (apheleia-log--buffer-name name)))
     (condition-case-unless-debug e
         (progn
           (setq apheleia--current-process
diff --git a/apheleia-log.el b/apheleia-log.el
index 0617a27..92d97f9 100644
--- a/apheleia-log.el
+++ b/apheleia-log.el
@@ -1,5 +1,7 @@
 ;;; apheleia-log.el --- Log utilities -*- lexical-binding: t -*-
 
+;; SPDX-License-Identifier: MIT
+
 ;;; Commentary:
 
 ;; Helpers for `apheleia' logging.
@@ -51,7 +53,7 @@ This points into a log buffer.")
   (pop-to-buffer (marker-buffer apheleia--last-error-marker))
   (goto-char apheleia--last-error-marker))
 
-(defun apheliea-log--buffer-name (formatter)
+(defun apheleia-log--buffer-name (formatter)
   "Get the name of the log buffer for FORMATTER."
   (format "%s*apheleia-%s-log*"
           (if apheleia-hide-log-buffers
diff --git a/apheleia-rcs.el b/apheleia-rcs.el
index e2df650..914b28d 100644
--- a/apheleia-rcs.el
+++ b/apheleia-rcs.el
@@ -1,5 +1,7 @@
 ;;; apheleia-rcs.el --- Apply RCS patches -*- lexical-binding: t -*-
 
+;; SPDX-License-Identifier: MIT
+
 ;;; Commentary:
 
 ;; A library to apply a RCS patch to an Emacs buffer while minimising the
@@ -74,7 +76,7 @@ See <https://tools.ietf.org/doc/tcllib/html/rcs.html#section4>
 for documentation on the RCS patch format."
   (save-excursion
     (goto-char (point-min))
-    (while (not (= (point) (point-max)))
+    (while (not (eobp))
       (unless (looking-at "$\\|\\([ad]\\)\\([0-9]+\\) \\([0-9]+\\)")
         (error "Malformed RCS patch: %S" (point)))
       (forward-line)
diff --git a/apheleia-utils.el b/apheleia-utils.el
index a749668..9407cd2 100644
--- a/apheleia-utils.el
+++ b/apheleia-utils.el
@@ -1,5 +1,7 @@
 ;;; apheleia-utils.el --- Formatter helpers. -*- lexical-binding: t -*-
 
+;; SPDX-License-Identifier: MIT
+
 ;;; Commentary:
 
 ;; Helper functions for defining apheleia formatters.
diff --git a/apheleia.el b/apheleia.el
index 029f490..f4b0ebf 100644
--- a/apheleia.el
+++ b/apheleia.el
@@ -177,17 +177,17 @@ similar task."
 (defvar apheleia-mode)
 
 ;; Prevent infinite loop.
-(defvar apheleia--format-after-save-in-progress nil
-  "Prevent `apheleia--format-after-save' from being called recursively.
-This will be locally bound to t while `apheleia--format-after-save' is
+(defvar apheleia-format-after-save-in-progress nil
+  "Prevent `apheleia-format-after-save' from being called recursively.
+This will be locally bound to t while `apheleia-format-after-save' is
 operating, to prevent an infinite loop.")
 
 ;; Autoload because the user may enable `apheleia-mode' without
 ;; loading Apheleia; thus this function may be invoked as an autoload.
 ;;;###autoload
-(defun apheleia--format-after-save ()
+(defun apheleia-format-after-save ()
   "Run code formatter for current buffer if any configured, then save."
-  (unless apheleia--format-after-save-in-progress
+  (unless apheleia-format-after-save-in-progress
     (when (and apheleia-mode (not (buffer-narrowed-p)))
       (when-let ((formatters (apheleia--get-formatters)))
         (apheleia-format-buffer
@@ -195,7 +195,7 @@ operating, to prevent an infinite loop.")
          (lambda ()
            (with-demoted-errors "Apheleia: %s"
              (when buffer-file-name
-               (let ((apheleia--format-after-save-in-progress t))
+               (let ((apheleia-format-after-save-in-progress t))
                  (apheleia--save-buffer-silently)))
              (run-hooks 'apheleia-post-format-hook))))))))
 
@@ -211,8 +211,8 @@ It is customized by means of the variables `apheleia-mode-alist'
 and `apheleia-formatters'."
     :lighter apheleia-mode-lighter
     (if apheleia-mode
-        (add-hook 'after-save-hook #'apheleia--format-after-save nil 'local)
-      (remove-hook 'after-save-hook #'apheleia--format-after-save 'local)))
+        (add-hook 'after-save-hook #'apheleia-format-after-save nil 'local)
+      (remove-hook 'after-save-hook #'apheleia-format-after-save 'local)))
 
   (defvar-local apheleia-inhibit nil
     "Do not enable `apheleia-mode' automatically if non-nil.