Fix typos and grammar in comments

vterm-module.c

@@ -424,7 +424,7 @@ static int term_resize(int rows, int cols, void *user_data) {
   /* if rows=term->lines_len, that means term_sb_pop already resize term->lines
    */
   /* if rows<term->lines_len, term_sb_push would resize term->lines there */
-  /* we noly need to take care of rows>term->height */
+  /* we only need to take care of rows>term->height */
 
   if (rows > term->height) {
     if (rows > term->lines_len) {
@@ -488,8 +488,8 @@ static void refresh_scrollback(Term *term, emacs_env *env) {
 
     term->linenum += term->sb_pending;
     del_cnt = term->linenum - max_line_count; /* extra lines at the bottom */
-    /* buf_index is negative,so we move to end of buffer,then backward
-       -buf_index lines. goto lines backward is effectively when
+    /* buf_index is negative, so we move to end of buffer, then backward
+       -buf_index lines. goto lines backward is effective when
        vterm-max-scrollback is a large number.
      */
     int buf_index = -(term->height + del_cnt);
@@ -503,7 +503,7 @@ static void refresh_scrollback(Term *term, emacs_env *env) {
   del_cnt = term->linenum - max_line_count;
   if (del_cnt > 0) {
     term->linenum -= del_cnt;
-    /* -del_cnt is negative,so we delete_lines from end of buffer.
+    /* -del_cnt is negative, so we delete_lines from end of buffer.
        this line means: delete del_cnt count of lines at end of buffer.
      */
     delete_lines(env, -del_cnt, del_cnt, true);
@@ -518,7 +518,7 @@ static void adjust_topline(Term *term, emacs_env *env) {
   VTermPos pos;
   vterm_state_get_cursorpos(state, &pos);
 
-  /* pos.row-term->height is negative,so we backward term->height-pos.row
+  /* pos.row-term->height is negative, so we backward term->height-pos.row
    * lines from end of buffer
    */
 

vterm.el

@@ -43,7 +43,7 @@
 ;; emacs-libvterm will downloaded and compiled.  In this case, libtool is
 ;; needed.
 
-;; The reccomended way to install emacs-libvterm is from MELPA.
+;; The recommended way to install emacs-libvterm is from MELPA.
 
 ;;; Usage
 
@@ -429,7 +429,7 @@ not require any shell-side configuration. See
 
 vterm inserts \\='fake\\=' newlines purely for rendering. When using
 vterm-copy-mode these are in conflict with many emacs functions
-like isearch-forward. if this varialbe is not-nil the
+like isearch-forward. if this variable is not-nil the
 fake-newlines are removed on entering copy-mode and re-inserted
 on leaving copy mode. Also truncate-lines is set to t on entering
 copy-mode and set to nil on leaving."
@@ -995,7 +995,7 @@ additional output received from the underlying process and will
 behave similarly to buffer in `fundamental-mode'.  This mode is
 typically used to copy text from vterm buffers.
 
-A conventient way to exit `vterm-copy-mode' is with
+A convenient way to exit `vterm-copy-mode' is with
 `vterm-copy-mode-done', which copies the selected text and exit
 `vterm-copy-mode'."
   :group 'vterm
@@ -1276,7 +1276,7 @@ Provide similar behavior as `insert' for vterm."
     (accept-process-output vterm--process vterm-timer-delay nil t)))
 
 (defun vterm-delete-region (start end)
-  "Delete the text between START and END for vterm. "
+  "Delete the text between START and END for vterm."
   (when vterm--term
     (save-excursion
       (when (get-text-property start 'vterm-line-wrap)
@@ -1314,9 +1314,9 @@ The return value is `t' when point moved successfully."
 ;;; Internal
 
 (defun vterm--forward-char ()
-  "Move point 1 character forward ().
+  "Move point 1 character forward.
 
-the return value is `t' when cursor moved."
+The return value is `t' when cursor moved."
   (vterm-reset-cursor-point)
   (let ((pt (point)))
     (vterm-send-key "<right>" nil nil nil t)
@@ -1340,7 +1340,7 @@ the return value is `t' when cursor moved."
 (defun vterm--backward-char ()
   "Move point N characters backward.
 
-Return count of moved characeters."
+Return count of moved characters."
   (vterm-reset-cursor-point)
   (let ((pt (point)))
     (vterm-send-key "<left>" nil nil nil t)
@@ -1815,7 +1815,7 @@ in README."
 
 (defun vterm--get-beginning-of-line (&optional pt)
   "Find the start of the line, bypassing line wraps.
-If PT is specified, find it's beginning of the line instead of the beginning
+If PT is specified, find its beginning of the line instead of the beginning
 of the line at cursor."
   (save-excursion
     (when pt (goto-char pt))
@@ -1827,8 +1827,8 @@ of the line at cursor."
     (point)))
 
 (defun vterm--get-end-of-line (&optional pt)
-  "Find the start of the line, bypassing line wraps.
-If PT is specified, find it's end of the line instead of the end
+  "Find the end of the line, bypassing line wraps.
+If PT is specified, find its end of the line instead of the end
 of the line at cursor."
   (save-excursion
     (when pt (goto-char pt))
@@ -1863,7 +1863,7 @@ More information see `vterm--prompt-tracking-enabled-p' and
   (= (point) (or (vterm--get-prompt-point) 0)))
 
 (defun vterm-cursor-in-command-buffer-p (&optional pt)
-  "Check whether cursor in command buffer area."
+  "Check whether cursor is in command buffer area."
   (save-excursion
     (vterm-reset-cursor-point)
     (let ((promp-pt (vterm--get-prompt-point)))