Fixed an error with LEF read where duplicate macros are encountered

in the input.  The name of one was being modified but was being
right-justified into the string, resulting in a name starting with
many space characters.  Also:  Fixed an issue with extresist where
a label that ends up with an empty string can become a node with
an empty string name in the .res.ext file output.

VERSION

@@ -1 +1 @@
-8.3.349
+8.3.350

lef/lefRead.c

@@ -2028,7 +2028,7 @@ LefReadMacro(f, mname, oscale, importForeign, doAnnotate, lefTimestamp)
 
 	for (suffix = 1; HashGetValue(he) != NULL; suffix++)
 	{
-	    sprintf(newname, "%250s_%d", mname, suffix);
+	    snprintf(newname, 255, "%s_%d", mname, suffix);
 	    he = HashFind(&lefDefInitHash, newname);
 	}
 	LefError(LEF_WARNING, "Cell \"%s\" was already defined in this file.  "

resis/ResMain.c

@@ -282,6 +282,10 @@ ResMakeLabelBreakpoints(def, goodies)
 
     for (slab = def->cd_labels; slab != NULL; slab = slab->lab_next)
     {
+	/* Avoid any empty-string labels, or it will end up as	*/
+	/* missing terminal on a device.			*/
+	if (*(slab->lab_text) == '\0') continue;
+
 	entry = HashFind(&ResNodeTable, slab->lab_text);
 	node = ResInitializeNode(entry);