Fix space issues in the code.

parse.y

@@ -1563,7 +1563,7 @@ method_qualifier_opt
   ;
 
 modport_declaration /* IEEE1800-2012: A.2.9 */
-  : K_modport 
+  : K_modport
       { if (!pform_in_interface())
 	      yyerror(@1, "error: modport declarations are only allowed "
 			  "in interfaces.");

pform.h

@@ -226,7 +226,7 @@ extern void pform_start_modport_item(const struct vlltype&loc, const char*name);
 extern void pform_end_modport_item(const struct vlltype&loc);
 extern void pform_add_modport_port(const struct vlltype&loc,
 	                           NetNet::PortType port_type,
-        	                   perm_string name, PExpr*expr);
+	                           perm_string name, PExpr*expr);
 
 /*
  * This creates an identifier aware of names that may have been

vpi/sys_darray.c

@@ -237,7 +237,7 @@ static PLI_INT32 to_vec_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
 		  vec_ptr->bval |= (bval << offset);
 
 		    /* Calculate the new offset into the vector. */
- 		  offset += (bits_to_copy > BPW) ? BPW : bits_to_copy;
+		  offset += (bits_to_copy > BPW) ? BPW : bits_to_copy;
 
 		    /* If the new offset is past the end of the vector part
 		     * then the next vector part also needs to be used. */