(@pxref{Display Custom}).
@cindex error message in the echo area
- If a command cannot be executed, it may print an @dfn{error message} in
-the echo area. Error messages are accompanied by a beep or by flashing the
-screen. Also, any input you have typed ahead is thrown away when an error
-happens.
+ If a command cannot be executed, it may print an @dfn{error message}
+in the echo area. Error messages are accompanied by beeping or by
+flashing the screen. The error also discards any input you have typed
+ahead.
Some commands print informative messages in the echo area. These
messages look much like error messages, but they are not announced with
formats by setting each of the variables @code{eol-mnemonic-unix},
@code{eol-mnemonic-dos}, @code{eol-mnemonic-mac}, and
@code{eol-mnemonic-undecided} to any string you find appropriate.
-@xref{Variables}, for an explanation how to set variables.
+@xref{Variables}, for an explanation of how to set variables.
@xref{Optional Mode Line}, for features that add other handy
information to the mode line, such as the current column number of