existing matcher with the same name as @code{matcher} if
@code{replace} is @code{True}. @code{locus} can be a
@code{gdb.Objfile} object (@pxref{Objfiles In Python}), or a
-@code{gdb.Progspace} object (@pxref{Program Spaces In Python}), or
+@code{gdb.Progspace} object (@pxref{Progspaces In Python}), or
@code{None}. If it is @code{None}, then @code{matcher} is registered
globally.
@end defun