Closes SF bug 527139.  Brings docs inline with random.py 1.29
which fixes the unnecessarily restricted method domain.
diff --git a/Doc/lib/librandom.tex b/Doc/lib/librandom.tex
index 47fea4f..3a12ae6 100644
--- a/Doc/lib/librandom.tex
+++ b/Doc/lib/librandom.tex
@@ -218,7 +218,7 @@
 
 \begin{funcdesc}{gammavariate}{alpha, beta}
   Gamma distribution.  (\emph{Not} the gamma function!)  Conditions on
-  the parameters are \code{\var{alpha} >= 0.5} and \code{\var{beta} > 0}.
+  the parameters are \code{\var{alpha} > 0} and \code{\var{beta} > 0}.
 \end{funcdesc}
 
 \begin{funcdesc}{gauss}{mu, sigma}