use macro for /usr/local/plan9
diff --git a/man/man1/page.1 b/man/man1/page.1
index eb4fed5..e3fd644 100644
--- a/man/man1/page.1
+++ b/man/man1/page.1
@@ -51,6 +51,6 @@
 .IR tex (1),
 .IR troff (1)
 .SH SOURCE
-.B /usr/local/plan9/src/cmd/draw/img.c
+.B \*9/src/cmd/draw/img.c
 .br
-.B /usr/local/plan9/bin/psv
+.B \*9/bin/psv