* gdb.base/callfuncs.exp: Make "print add" messages unique.
* gdb.base/ending-run.exp: Put spaces around "breakpoint" to stop
matching directories by the name breakpoint.
* gdb.base/pointers.exp: Make "ptype pppC" message consistent.
Make "continue to marker1" consistent.
* gdb.base/call-rt-st.exp: Make "finish out from loop_count"
message consistent.
* lib/gdb.exp: Put "the program is no longer running", and "the
program exited" in parenthesis.
* lib/mi-support.exp: Ditto.