David Brownell <david-b@pacbell.net> Fix segv in jtag_examine_chain(): exit loop on no-tap. Keep

"next iteration" step with the rest of the loop overhead.

Cleanup:  remove spurious whitespace, and an overlong line;
only assign "tap->hasidcode" once.

git-svn-id: svn://svn.berlios.de/openocd/trunk@2631 b42882b7-edfa-0310-969c-e2dbd0fdcd60