Autoconfigure the directories in the manpage.

diff --git a/configure.in b/configure.in
index 86fce1d..0d99cca 100644
--- a/configure.in
+++ b/configure.in
@@ -768,6 +768,7 @@
 dlls/winspool/Makefile
 dlls/wnaspi32/Makefile
 documentation/Makefile
+documentation/wine.man
 files/Makefile
 graphics/Makefile
 graphics/enhmetafiledrv/Makefile