NMakefile.template ($(OUTDIR)/posixfcn.obj): Fix a typo.

Copyright-paperwork-exempt: yes.
diff --git a/NMakefile.template b/NMakefile.template
index 3e1a30b..f2e038f 100644
--- a/NMakefile.template
+++ b/NMakefile.template
@@ -123,7 +123,7 @@
 	$(CC) $(CFLAGS) /c $?
 $(OUTDIR)/dirent.obj : w32/compat/dirent.c
 	$(CC) $(CFLAGS) /c $?
-$(OUTDIR)/pathstuff.obj : w32/compat/posixfcn.c
+$(OUTDIR)/posixfcn.obj : w32/compat/posixfcn.c
 	$(CC) $(CFLAGS) /c $?
 $(OUTDIR)/pathstuff.obj : w32/pathstuff.c
 	$(CC) $(CFLAGS) /c $?