This function is used to open a @dfn{termscript file} that will record
all the characters sent by XEmacs to the terminal. (If there are
multiple tty or stream devices, all characters sent to all such devices
-are recorded.) The funcion returns @code{nil}. Termscript files are
+are recorded.) The function returns @code{nil}. Termscript files are
useful for investigating problems where XEmacs garbles the screen,
problems that are due to incorrect Termcap entries or to undesirable
settings of terminal options more often than to actual XEmacs bugs.