Don't generate a line containing only \ at the top of a new index

file.

diff --git a/Doc/tools/mkhowto b/Doc/tools/mkhowto
index af46fffbbcd50f4e4b67fca268b186d83ab504a1..50e74c2e3ee086bfd95f07de4a6047d7f6bfba29 100755 (executable)
--- a/Doc/tools/mkhowto
+++ b/Doc/tools/mkhowto
@@ -640,11 +640,9 @@ def uniqify_module_table(filename):
 
 def new_index(filename, label="genindex"):
     fp = open(filename, "w")
-    fp.write(r"""\
-\begin{theindex}
-\label{%s}
-\end{theindex}
-""" % label)
+    fp.write("\\begin{theindex}\n"
+             "\\label{%s}\n"
+             "\\end{theindex}\n" % label)
     fp.close()