In build_html(), strip off leading "./" from filename, added by

freddrake · freddrake · commit b52109595280 · 1998-10-16T17:34:34.000Z
kpsewhich.  This caused a problem with the latest latex2html beta.
diff --git a/Doc/tools/mkhowto.sh b/Doc/tools/mkhowto.sh
@@ -78,6 +78,7 @@ MAX_SPLIT_DEPTH=6
 
 build_html() {
     TEXFILE=`kpsewhich $1.tex`
+    TEXFILE="${TEXFILE#./}"
     BUILDDIR=${2:-$1}
     latex2html \
      -init_file $L2H_INIT_FILE \
