fix warn

Geo/GEdge.h

@@ -121,9 +121,12 @@ class GEdge : public GEntity {
   // true if start == end and no more than 2 segments
   void setTooSmall(bool b) { _tooSmall = b; }
   bool isMeshDegenerated() const 
-  { if (_tooSmall) printf("too small \n");
-    if (v0 == v1 && mesh_vertices.size() < 2) printf("mesh_vertices.size() =%d \n", mesh_vertices.size());
-    return _tooSmall || (v0 == v1 && mesh_vertices.size() < 2); }
+  { 
+    if (_tooSmall) printf("too small \n");
+    if (v0 == v1 && mesh_vertices.size() < 2)
+      printf("mesh_vertices.size() = %d \n", (int)mesh_vertices.size());
+    return _tooSmall || (v0 == v1 && mesh_vertices.size() < 2);
+  }
 
   // number of types of elements
   int getNumElementTypes() const { return 1; }