Doc update: clarify dumpsys instructions
Doc update: clarify dumpsys instructions

"Bug: 8474578"

Change-Id: Ic743de8f41a1b2d38a4d2495148dc07e2f45b8e5

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base