update description of waitFor in the package.json to indicate that the pid will be ignored

Author: matthewbastien

lldb/tools/lldb-dap/package.json

@@ -363,7 +363,7 @@
               },
               "waitFor": {
                 "type": "boolean",
-                "description": "If set to true, then wait for the process to launch by looking for a process with a basename that matches `program`. No process ID needs to be specified when using this flag.",
+                "description": "If set to true, then wait for the process to launch by looking for a process with a basename that matches `program`. The process ID is ignored when using this flag.",
                 "default": true
               },
               "sourcePath": {