Simplify messaging for missing files

src/lg.py

@@ -144,7 +144,7 @@ class Lg(object):
                 except:
                     # Create an empty graph if a file cannot be found.
                     # Set the error flag.
-                    sys.stderr.write(str(sys.exc_info()[0]))
+                    #sys.stderr.write(str(sys.exc_info()[0]))
                     sys.stderr.write("  !! IO Error (cannot open): " + fileName + "\n")
                     self.error = True
                     return
@@ -1298,15 +1298,15 @@ class Lg(object):
 
         # WARN about absent nodes/edges; indicate that there is an error.
         if len(self.absentNodes) > 0:
-            sys.stderr.write(
-                "  !! Inserting ABSENT nodes for:\n      "
-                + self.file
-                + " vs.\n      "
-                + lg2.file
-                + "\n      "
-                + str(sorted(list(self.absentNodes)))
-                + "\n"
-            )
+            #sys.stderr.write(
+            #    "  !! Inserting ABSENT nodes for "
+            #    + self.file
+            #    + " vs. "
+            #    + lg2.file
+            #    + "\n"
+            #    + str(sorted(list(self.absentNodes)))
+            #    + "\n"
+            #)
             self.error = True
 
         # Add "absent" nodes.