Resolve many build warnings

This patch fixes many warnings from the beginning of the build up to
and including the depend stage. Nearly all warnings should be gone
even with -Wall.

cde/programs/dthelp/parser/pass2/util/error.c

@@ -306,8 +306,8 @@ void esuffix(M_NOPAR)
 void msgline(text)
   char *text ;
   {
-    fprintf(stderr, text) ;
-    fprintf(m_errfile, text) ;
+    fprintf(stderr, "%s", text) ;
+    fprintf(m_errfile, "%s", text) ;
     }
 
 /* Print something to both stderr and m_errfile */