Remove bogus character.

Lib/pdb.py

@@ -1051,7 +1051,7 @@ Specifying any command resuming execution (currently continue,
 step, next, return, jump, quit and their abbreviations) terminates
 the command list (as if that command was immediately followed by end).
 This is because any time you resume execution
-(even with a simple next or step), you may encounter
+(even with a simple next or step), you may encounter
 another breakpoint--which could have its own command list, leading to
 ambiguities about which list to execute.