fixed more typos

Assignment-03/dshlib.c

@@ -89,7 +89,7 @@ int build_cmd_list(char *cmd_line, command_list_t *clist)
             strcpy(clist->commands[command_count].exe, command_and_arguments);
         
             int  argument_count = 0;
-            while ((command_and_arguments = strtok(NULL, SPACE_CHAR) != NULL ) { 
+            while ((command_and_arguments = strtok(NULL, SPACE_CHAR)) != NULL) { 
 
                 if (strlen(command_and_arguments) >= ARG_MAX) {
                     free(trimmed_line);
@@ -116,7 +116,7 @@ int build_cmd_list(char *cmd_line, command_list_t *clist)
         return ERR_TOO_MANY_COMMANDS;
     }
 
-    clist->count = command_count;
+    clist->num = command_count;
     free(trimmed_line);
     return OK;
 }
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