To prevent command spoofing, \fBsudo\fR checks \*(L".\*(R" and "" (both denoting
current directory) last when searching for a command in the user's
\&\s-1PATH\s0 (if one or both are in the \s-1PATH\s0). Note, however, that the
-actual \f(CW\*(C`PATH\*(C'\fR environment variable is \fInot\fR modified and is passed
-unchanged to the program that \fBsudo\fR executes.
+\&\f(CW\*(C`PATH\*(C'\fR environment variable is further modified in Debian because of
+the use of the \fI\s-1SECURE_PATH\s0\fR build option.
.PP
\&\fBsudo\fR will check the ownership of its timestamp directory
(\fI@timedir@\fR by default) and ignore the directory's contents if
\&\fIgrep\fR\|(1), \fIsu\fR\|(1), \fIstat\fR\|(2),
@LCMAN@\&\fIlogin_cap\fR\|(3),
\&\fIpasswd\fR\|(@mansectform@), \fIsudoers\fR\|(5), \fIvisudo\fR\|(@mansectsu@)
+.PP
+The file /usr/share/doc/sudo/OPTIONS describes the options used for building
+the Debian version of sudo, some of which change default behaviors documented
+elsewhere in this document.
.SH "AUTHORS"
.IX Header "AUTHORS"
Many people have worked on \fBsudo\fR over the years; this