Whitespace normalization, via reindent.py.
diff --git a/Doc/tools/keywords.py b/Doc/tools/keywords.py
index 876987d..9f32056 100644
--- a/Doc/tools/keywords.py
+++ b/Doc/tools/keywords.py
@@ -4,16 +4,16 @@
 
 l = []
 try:
-	while 1:
-		l = l + raw_input().split()
+    while 1:
+        l = l + raw_input().split()
 except EOFError:
-	pass
+    pass
 l.sort()
 for x in l[:]:
-	while l.count(x) > 1: l.remove(x)
+    while l.count(x) > 1: l.remove(x)
 ncols = 5
 nrows = (len(l)+ncols-1)/ncols
 for i in range(nrows):
-	for j in range(i, len(l), nrows):
-		print l[j].ljust(10),
-	print
+    for j in range(i, len(l), nrows):
+        print l[j].ljust(10),
+    print