Docs: lose extra quotes

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 8faa78dceb0db155439c5523e948bd3d45cb29d7..e7228c1ab5bf5acf4694d462ac82bf1c5f4da1c7 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -6602,7 +6602,7 @@ file that is searched could contain lines like this:
 When the lookup succeeds, the result of the expansion is a list of domains (and
 possibly other types of item that are allowed in domain lists).
 .cindex "tainted data" "de-tainting"
-.cindex "de-tainting" "using a lookup expansion""
+.cindex "de-tainting" "using a lookup expansion"
 The result of the expansion is not tainted.
 
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