Fix typos in manpages

docs/libssh2_base64_decode.3

@@ -19,7 +19,7 @@ The returned buffer is allocated by this function, but it is not clear how to
 free that memory!
 .SH BUGS
 The memory that *dest points to is allocated by the malloc function libssh2
-uses, but there's no way for an appliction to free this data in a safe and
+uses, but there's no way for an application to free this data in a safe and
 reliable way!
 .SH RETURN VALUE
 0 if successful, \-1 if any error occurred.

docs/libssh2_channel_get_exit_status.3

@@ -8,7 +8,7 @@ int
 libssh2_channel_get_exit_status(LIBSSH2_CHANNEL* channel)
 
 .SH DESCRIPTION
-\fIchannel\fP - Closed channel stream to retreive exit status from.
+\fIchannel\fP - Closed channel stream to retrieve exit status from.
 
 Returns the exit code raised by the process running on the remote host at 
 the other end of the named channel. Note that the exit status may not be