Document need for "-c debian.master/changelog" arguments to dch -i.

It sounds like debian/README.source is the right place to document it.

When building the package, "dch -i" alone doesn't work because it gets overwritten by debian.master/changelog. This is, I believe, unusual behavior, and it certainly threw me off, particularly

Instead, you need to run "dch -i -c debian.master/changelog".

ProblemType: Bug
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: darxus 1950 F.... pulseaudio
 /dev/snd/pcmC0D0p: darxus 1950 F...m pulseaudio
 /dev/snd/pcmC0D0c: darxus 1950 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'CK804'/'NVidia CK804 with ALC850 at irq 22'
   Mixer name : 'Realtek ALC850 rev 0'
   Components : 'AC97a:414c4790'
   Controls : 42
   Simple ctrls : 27
Date: Tue Oct 6 12:16:29 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=1844b212-fd63-418b-9202-af45a5f49e03
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 006: ID 0764:0501 Cyber Power System, Inc. CP1500 AVR UPS
 Bus 002 Device 005: ID 046d:c018 Logitech, Inc. Optical Wheel Mouse
 Bus 002 Device 004: ID 046d:c312 Logitech, Inc. DeLuxe 250 Keyboard
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: System manufacturer System Product Name
NonfreeKernelModules: nvidia
Package: linux-image-2.6.31-11-generic 2.6.31-11.38
ProcCmdLine: root=UUID=c8a2635c-1439-450d-ade6-a3ea67f7d30c ro quiet splash
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-11.38-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-11-generic N/A
 linux-firmware 1.20
RfKill:

SourcePackage: linux
Uname: Linux 2.6.31-11-generic i686
WifiSyslog:

WpaSupplicantLog:

dmi.bios.date: 10/21/2005
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: ASUS A8N-SLI Premium ACPI BIOS Revision 1009
dmi.board.name: A8N-SLI Premium
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: 1.02
dmi.chassis.asset.tag: 123456789000
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrASUSA8N-SLIPremiumACPIBIOSRevision1009:bd10/21/2005:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnA8N-SLIPremium:rvr1.02:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer