Consistency: In two places, change {\it ...} to \emph{...}.

Doc/lib/libamoeba.tex

@@ -72,9 +72,9 @@ Initially, the timeout is set to 2 seconds by the Python interpreter.
 
 Capabilities are written in a convenient \ASCII{} format, also used by the
 Amoeba utilities
-{\it c2a}(U)
+\emph{c2a}(U)
 and
-{\it a2c}(U).
+\emph{a2c}(U).
 For example:
 
 \bcode\begin{verbatim}

Doc/libamoeba.tex

@@ -72,9 +72,9 @@ Initially, the timeout is set to 2 seconds by the Python interpreter.
 
 Capabilities are written in a convenient \ASCII{} format, also used by the
 Amoeba utilities
-{\it c2a}(U)
+\emph{c2a}(U)
 and
-{\it a2c}(U).
+\emph{a2c}(U).
 For example:
 
 \bcode\begin{verbatim}