remove extra whitespace

Author: vladak

file-api.tex

@@ -227,7 +227,7 @@
 \item attempts to write \emph{nbyte} of data to the object referenced by the
 descriptor \emph{fd} from the buffer pointed to by \emph{buf}
 \item number of bytes which were written is returned, -1 on error
-\end{itemize}     
+\end{itemize}
 \end{slide}
 
 \hlabel{READCALL}
@@ -279,7 +279,7 @@
 
 \begin{slide}
 \sltitle{Closing a file: \texttt{close()}}
-\texttt{int \funnm{close}(int \emph{fildes});} 
+\texttt{int \funnm{close}(int \emph{fildes});}
 \begin{itemize}
 \item releases \texttt{fildes}, if it was the last descriptor for a file
 opening, closes the file