Use gcc -ansi -pedantic in 9c.  Fix many non-C89-isms.
diff --git a/src/cmd/acme/addr.c b/src/cmd/acme/addr.c
index 7af5f6b..3869e39 100644
--- a/src/cmd/acme/addr.c
+++ b/src/cmd/acme/addr.c
@@ -15,13 +15,13 @@
 {
 	None = 0,
 	Fore = '+',
-	Back = '-',
+	Back = '-'
 };
 
 enum
 {
 	Char,
-	Line,
+	Line
 };
 
 int