Add eprvcd to the commands which set node names to lower case,

but not the file names after >
Does not work for manually entered eprvcd commands, where the user
has to provide lower case node names.

src/frontend/inpcom.c

@@ -1538,6 +1538,7 @@ struct inp_read_t inp_read( FILE *fp, int call_depth, const char *dir_name,
             }
             else if (ciprefix("print", buffer) ||
                     ciprefix("eprint", buffer) ||
+                    ciprefix("eprvcd", buffer) ||
                     ciprefix("asciiplot", buffer)) {
                 /* lower case excluded for tokens following output redirection
                  * '>' */