Clarify 'survey' command text

[tstromberg]

Old Behavior

skaffold help survey

Show Skaffold survey url

Usage:
  skaffold survey [flags] [options]

Use "skaffold options" for a list of global command-line options (applies to all commands).

skaffold survey

Thank you for offering your feedback on Skaffold! Understanding your experiences and opinions helps us make Skaffold better for you and other users.
   Our survey can be found here: https://forms.gle/BMTbGQXLWSdn7vEs6

To permanently disable the survey prompt, run:
   skaffold config set --survey --global disable-prompt true

New behavior

skaffold help survey

Opens a web browser to fill out the Skaffold survey

Usage:
  skaffold survey [flags] [options]

Use "skaffold options" for a list of global command-line options (applies to all commands).

skaffold survey

Thank you for offering your feedback on Skaffold! Understanding your experiences and opinions helps us make Skaffold better for you and other users.

Skaffold will now attempt to open the survey in your default web browser. You may also manually open it using this link:

https://forms.gle/BMTbGQXLWSdn7vEs6

To permanently disable the survey prompt, run:
   skaffold config set --survey --global disable-prompt true

[codecov]

Codecov Report

Merging #4625 into master will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #4625   +/-   ##
=======================================
  Coverage   73.18%   73.18%           
=======================================
  Files         337      337           
  Lines       13261    13261           
=======================================
  Hits         9705     9705           
  Misses       2947     2947           
  Partials      609      609           

Impacted Files	Coverage Δ
pkg/skaffold/survey/survey.go	52.94% <ø> (ø)
cmd/skaffold/app/cmd/survey.go	57.14% <100.00%> (ø)

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