Fix typo

doc/sane-gphoto2.man

@@ -34,7 +34,7 @@ change and must be read from the camers.  In this case, the
 line would read "topfolder=/DCIM"
 .PP
 Some cameras don't implement a file structure and store all pictures
-in the "/" directory.  This is indicated by setting "subdirs=1" with
+in the "/" directory.  This is indicated by setting "subdirs=0" with
 "topfolder=/"
 .pp
 .RS