extend.man in alf-shell-0.16.0

- old
+ new

@@ -27,7 +27,7 @@
 As of current Alf version, this operator cannot be translated to SQL code.
 In other words, all computations are done in ruby, which may seriously
 hurt performance.
 .PP
 Similarly, as \fB\fCextend\fR tends to be a showstopper during compilation, it is
-strongly recommanded to use it as high as possible in query expressions
+strongly recommended to use it as high as possible in query expressions
 trees so as to delegate the largest possible query parts to data engines.
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