Fix minor typo reported in SF patch #497951.

diff --git a/Doc/lib/librfc822.tex b/Doc/lib/librfc822.tex
index 74147154a02f8d2ef7dc23c0947815b7257703d6..2fb7d3e23e4e18e5c8a40340f2bb3363b53d991e 100644 (file)
--- a/Doc/lib/librfc822.tex
+++ b/Doc/lib/librfc822.tex
@@ -115,7 +115,7 @@ usable.
 
 \begin{funcdesc}{mktime_tz}{tuple}
 Turn a 10-tuple as returned by \function{parsedate_tz()} into a UTC
-timestamp.  It the timezone item in the tuple is \code{None}, assume
+timestamp.  If the timezone item in the tuple is \code{None}, assume
 local time.  Minor deficiency: this first interprets the first 8
 elements as a local time and then compensates for the timezone
 difference; this may yield a slight error around daylight savings time