Shorten section title.
diff --git a/Doc/lib/librgbimg.tex b/Doc/lib/librgbimg.tex
index e5d2d03..e51e94a 100644
--- a/Doc/lib/librgbimg.tex
+++ b/Doc/lib/librgbimg.tex
@@ -1,7 +1,7 @@
 \section{\module{rgbimg} ---
-         Read and write image files in ``SGI RGB'' format.}
-\declaremodule{builtin}{rgbimg}
+         Read and write ``SGI RGB'' files}
 
+\declaremodule{builtin}{rgbimg}
 \modulesynopsis{Read and write image files in ``SGI RGB'' format (the module is
 \emph{not} SGI specific though!).}