* gdb.base/shmain.c (main): Remove printf call.

	* gdb.base/shmain.c (main): Remove printf call.
	* gdb.base/sizeof.c (main): Cast return of sizeof to int.
	* gdb.base/unload.c (main): Make format of fprintf a string
	literal.  Add missing endlines to prints to stderr.
	* gdb.base/watchpoint-solib.c (open_shlib): Ditto.