Make sure that labeling is used consistently in all function headers.

libc/stdlib/lib_abort.c

@@ -87,7 +87,7 @@
  *   It does this by restoring the default disposition for SIGABRT and
  *   then raising the signal for a second time.
  *
- * Input parameters:
+ * Input Parameters:
  *   None
  *
  * Returned Value:

libc/stdlib/lib_checkbase.c

@@ -59,7 +59,7 @@
  * Assumptions:
  *   *ptr points to the first, non-whitespace character in the string.
  *
- * Returns:
+ * Returned Value:
  *   - if base is valid, the actual base to use, and pptr is updated to point
  *     at the first digit.
  *   - if base is invalid (<2 or >36), return -1.

libc/stdlib/lib_ptsname.c

@@ -54,7 +54,7 @@
  *   The ptsname() function returns the name of the slave pseudoterminal
  *   device corresponding to the master referred to by fd.
  *
- * Returned Values:
+ * Returned Value:
  *   On success, ptsname() returns a pointer to a string in static storage
  *   which will be overwritten by subsequent calls.  This pointer must not
  *   be freed.  On failure, NULL is returned.

libc/stdlib/lib_ptsnamer.c

@@ -59,7 +59,7 @@
  *   terminated string in the buffer pointed to by buf.  The buflen
  *   argument specifies the number of bytes available in buf.
  *
- * Returned Values:
+ * Returned Value:
  *   On success, ptsname_r() returns 0.  On failure, a nonzero value is
  *   returned and errno is set to indicate the error.
  *

libc/stdlib/lib_strtol.c

@@ -61,7 +61,7 @@
  *   nptr to a long integer value according to the given base, which must be
  *   between 2 and 36 inclusive, or be the special value 0.
  *
- * Returns:
+ * Returned Value:
  *   - The converted value, if the base and number are valid
  *   - 0 if an error occurs, and set errno to:
  *     * EINVAL if base < 2 or base > 36

libc/stdlib/lib_strtoll.c

@@ -63,7 +63,7 @@
  *   nptr to a long long integer value according to the given base, which
  *   must be between 2 and 36 inclusive, or be the special value 0.
  *
- * Returns:
+ * Returned Value:
  *   - The converted value, if the base and number are valid
  *   - 0 if an error occurs, and set errno to:
  *     * EINVAL if base < 2 or base > 36

libc/stdlib/lib_strtoul.c

@@ -56,7 +56,7 @@
  *   nptr to a long unsigned integer value according to the given base, which
  *   must be between 2 and 36 inclusive, or be the special value 0.
  *
- * Returns:
+ * Returned Value:
  *   - The converted value, if the base and number are valid
  *   - 0 if an error occurs, and set errno to:
  *     * EINVAL if base < 2 or base > 36

libc/stdlib/lib_strtoull.c

@@ -59,7 +59,7 @@
  *   nptr to a long unsigned integer value according to the given base, which
  *   must be between 2 and 36 inclusive, or be the special value 0.
  *
- * Returns:
+ * Returned Value:
  *   - The converted value, if the base and number are valid
  *   - 0 if an error occurs, and set errno to:
  *     * EINVAL if base < 2 or base > 36

libc/stdlib/lib_unlockpt.c

@@ -57,7 +57,7 @@
  *   unlockpt() must be called before opening the slave side of a
  *   pseudoterminal.
  *
- * Returned Values:
+ * Returned Value:
  *   When successful, unlockpt() returns 0. Otherwise, it returns -1 and
  *   sets errno appropriately.
  *