Michael Bruck spotted a typo in help messages

git-svn-id: svn://svn.berlios.de/openocd/trunk@1510 b42882b7-edfa-0310-969c-e2dbd0fdcd60

configure.in

@@ -218,7 +218,7 @@ AC_ARG_ENABLE(verbose_usb_comms,
   		[Enable verbose USB communication messages (for debugging)]), 
 	[debug_usb_comms=$enableval], [])
 
-AC_MSG_CHECKING([whether to enable verbose JTAB I/O messages]);
+AC_MSG_CHECKING([whether to enable verbose JTAG I/O messages]);
 AC_MSG_RESULT($debug_jtag_io)
 if test $debug_jtag_io = yes; then
   AC_DEFINE([_DEBUG_JTAG_IO_],[1], [Print verbose JTAG I/O messages])