Improve --script option documentation

[goddard@…]

The following bug report has been submitted:
Platform:        macOS-11.6-x86_64-i386-64bit
ChimeraX Version: 1.4.dev202111242100 (2021-11-24 21:00:24 UTC)
Description
Need to improve docs for --script option.

chimerax --nogui --silent --script test.py arg1

gives and error trying to open the file arg1,  while

chimerax --nogui --silent --script "test.py arg1"

works but is not the syntax given in the documentation.   The quoting is pretty awkward and not sure that is the intended syntax.   So maybe it should be fixed so the unquoted version works,  ie all trailing args go to the script.

Also the docs do not say how the script accesses the args.  Should say they are available as sys.argv.


Log:
UCSF ChimeraX version: 1.4.dev202111242100 (2021-11-24)  
© 2016-2021 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  




OpenGL version: 4.1 ATI-4.6.20
OpenGL renderer: AMD Radeon Pro Vega 20 OpenGL Engine
OpenGL vendor: ATI Technologies Inc.Hardware:

    Hardware Overview:

      Model Name: MacBook Pro
      Model Identifier: MacBookPro15,3
      Processor Name: 8-Core Intel Core i9
      Processor Speed: 2.4 GHz
      Number of Processors: 1
      Total Number of Cores: 8
      L2 Cache (per Core): 256 KB
      L3 Cache: 16 MB
      Hyper-Threading Technology: Enabled
      Memory: 32 GB
      System Firmware Version: 1554.140.20.0.0 (iBridge: 18.16.14759.0.1,0)

Software:

    System Software Overview:

      System Version: macOS 11.6 (20G165)
      Kernel Version: Darwin 20.6.0
      Time since boot: 3 days 2:48

Graphics/Displays:

    Intel UHD Graphics 630:

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      Device ID: 0x3e9b
      Revision ID: 0x0002
      Automatic Graphics Switching: Supported
      gMux Version: 5.0.0
      Metal Family: Supported, Metal GPUFamily macOS 2

    Radeon Pro Vega 20:

      Chipset Model: Radeon Pro Vega 20
      Type: GPU
      Bus: PCIe
      PCIe Lane Width: x8
      VRAM (Total): 4 GB
      Vendor: AMD (0x1002)
      Device ID: 0x69af
      Revision ID: 0x00c0
      ROM Revision: 113-D2060I-087
      VBIOS Version: 113-D20601MA0T-016
      Option ROM Version: 113-D20601MA0T-016
      EFI Driver Version: 01.01.087
      Automatic Graphics Switching: Supported
      gMux Version: 5.0.0
      Metal Family: Supported, Metal GPUFamily macOS 2
      Displays:
        Color LCD:
          Display Type: Built-In Retina LCD
          Resolution: 2880 x 1800 Retina
          Framebuffer Depth: 24-Bit Color (ARGB8888)
          Main Display: Yes
          Mirror: Off
          Online: Yes
          Automatically Adjust Brightness: Yes
          Connection Type: Internal

Locale: (None, 'UTF-8')
PyQt5 5.15.2, Qt 5.15.2
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[Tom Goddard]

One more issue, the "--silent" option is not documented.

[Eric Pettersen]

I think the quoting should be documented rather than changing the syntax of an option that is probably already used by many people. The quoting should not only be documented in the HTML documentation but also in the output of "chimerax --help"