loader: Mention builtin executables in wine manpage

[Frédéric Delanoy]

http://bugs.winehq.org/show_bug.cgi?id=30797

---
 loader/wine.man.in | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/loader/wine.man.in b/loader/wine.man.in
index 6b60000..db2e91b 100644
--- a/loader/wine.man.in
+++ b/loader/wine.man.in
@@ -53,6 +53,13 @@ a shell, e.g.
 .PP
 wine C:\(rs\(rsProgram\(rs Files\(rs\(rsMyPrg\(rs\(rstest.exe
 .PP
+Note that Wine default configuration includes several builtin Windows executables which can
+be run without specifying a full path (i.e. they are in the Windows \fBPATH\fR), e.g.
+\fIwine explorer\fR or \fIwine notepad\fR.
+.PP
+Those can generally be be found in the system directories of your virtual Windows installation,
+like \fIC:\(rswindows\fR or \fIC:\(rswindows\(rssystem32\fR.
+.PP
 .SH ENVIRONMENT
 .B wine
 makes the environment variables of the shell from which it
-- 
1.8.4