Spelling fixes: "occured" + "an other"

https://dev.yorhel.nl/ncdu/bug/112

doc/ncdu.pod

@@ -273,11 +273,11 @@ flags have the following meaning:
 
 =item !
 
-An error occured while reading this directory.
+An error occurred while reading this directory.
 
 =item .
 
-An error occured while reading a subdirectory, so the indicated size may not be
+An error occurred while reading a subdirectory, so the indicated size may not be
 correct.
 
 =item <

src/delete.c

@@ -195,7 +195,7 @@ static int delete_dir(struct dir *dr) {
     r = unlink(dr->name);
 
 delete_nxt:
-  /* error occured, ask user what to do */
+  /* error occurred, ask user what to do */
   if(r == -1 && !ignoreerr) {
     state = DS_FAILED;
     lasterrno = errno;

src/dir.h

@@ -123,7 +123,7 @@ void dir_curpath_set(const char *);
 void dir_curpath_enter(const char *);
 void dir_curpath_leave();
 
-/* Sets the path where the last error occured, or reset on NULL. */
+/* Sets the path where the last error occurred, or reset on NULL. */
 void dir_setlasterr(const char *);
 
 /* Error message on fatal error, or NULL if there hasn't been a fatal error yet. */

src/dir_common.c

@@ -36,7 +36,7 @@ struct dir_output dir_output;
 char *dir_fatalerr; /* Error message on a fatal error. (NULL if there was no fatal error) */
 int dir_ui;         /* User interface to use */
 static int confirm_quit_while_scanning_stage_1_passed; /* Additional check before quitting */
-static char *lasterr; /* Path where the last error occured. */
+static char *lasterr; /* Path where the last error occurred. */
 static int curpathl; /* Allocated length of dir_curpath */
 static int lasterrl; /* ^ of lasterr */
 

src/dir_import.c

@@ -81,7 +81,7 @@ struct ctx {
 
 /* Fills readbuf with data from the stream. *buf will have at least n (<
  * READ_BUF_SIZE) bytes available, unless the stream reached EOF or an error
- * occured. If the file data contains a null-type, this is considered an error.
+ * occurred. If the file data contains a null-type, this is considered an error.
  * Returns 0 on success, non-zero on error. */
 static int fill(int n) {
   int r;

src/dir_scan.c

@@ -84,7 +84,7 @@ static void stat_to_dir(struct stat *fs) {
 /* Reads all filenames in the currently chdir'ed directory and stores it as a
  * nul-separated list of filenames. The list ends with an empty filename (i.e.
  * two nuls). . and .. are not included. Returned memory should be freed. *err
- * is set to 1 if some error occured. Returns NULL if that error was fatal.
+ * is set to 1 if some error occurred. Returns NULL if that error was fatal.
  * The reason for reading everything in memory first and then walking through
  * the list is to avoid eating too many file descriptors in a deeply recursive
  * directory. */

src/help.c

@@ -97,8 +97,8 @@ void help_draw() {
       ncaddch(10, 4, 'H');
       ncaddch(11, 4, 'e');
       uic_set(UIC_DEFAULT);
-      ncaddstr( 5, 7, "An error occured while reading this directory");
-      ncaddstr( 6, 7, "An error occured while reading a subdirectory");
+      ncaddstr( 5, 7, "An error occurred while reading this directory");
+      ncaddstr( 6, 7, "An error occurred while reading a subdirectory");
       ncaddstr( 7, 7, "File or directory is excluded from the statistics");
       ncaddstr( 8, 7, "Directory was on another filesystem");
       ncaddstr( 9, 7, "This is not a file nor a dir (symlink, socket, ...)");