wikifmt: fix trailing _ in heading name reference

diff --git a/sys/src/cmd/aux/wikifmt.c b/sys/src/cmd/aux/wikifmt.c
index 80cd53f1be8ffbf6dc45b8237015b3f142e91921..a28e5e2d6444a83d44f994c82b1e837df3df2526 100644 (file)
--- a/sys/src/cmd/aux/wikifmt.c
+++ b/sys/src/cmd/aux/wikifmt.c
@@ -185,7 +185,8 @@ heading(void)
        output("0123456"+n, 1);
        string("><a name=\"");
        o = pos;
-       while(pos < e){
+       s = trimback(e);
+       while(pos < s){
                if((*pos >= 'a' && *pos <= 'z')
                || (*pos >= 'A' && *pos <= 'Z')
                || (*pos >= '0' && *pos <= '9')