nxstyle fixes

Run all files modified by PR 766 through nxstyle and fix any resulting complaints.

NOTE:  Numerous "Mixed case identifier" errors in arch/arm/src/cxd56xx/cxd56_gnss.c were not fixed because this problem is of much larger scope than this file.

libs/libc/net/lib_inetntoa.c

@@ -41,8 +41,8 @@
  * Description:
  *   The inet_ntoa() function converts the Internet host address given in
  *   network byte order to a string in standard numbers-and-dots notation.
- *   The string is returned in a statically allocated buffer, which subsequent
- *   calls will overwrite.
+ *   The string is returned in a statically allocated buffer, which
+ *   subsequent calls will overwrite.
  *
  ****************************************************************************/