Some modifications to improve readability

[archsyscall]

In the long string, formalstring thinks it is good to have a name.

When using dict, literal is better for readability and faster than dict constructor.

I always appreciate your efforts in creating the world's best frameworks.

[kostmo]

CircleCI build failures summary

As of commit 581a283:

• 2/2 failures introduced in this PR

Detailed failure analysis

One may explore the probable reasons each build failed interactively on the Dr. CI website.

2 new failures recognized by patterns

The following build failures don't appear to be due to upstream breakage:

pytorch_windows_test2 (1/2)

Step: "Test" (full log | pattern match details)

- cmake - cmake not installed. The package was not found with the source(s) listed.

 NOTE: When you specify explicit sources, it overrides default sources. 
If the package version is a prerelease and you didn't specify `--pre`, 
 the package may not be found. 
Please see https://chocolatey.org/docs/troubleshooting for more  
 assistance. 
 
Chocolatey installed 0/1 packages. 1 packages failed. 
 See the log for details (C:\ProgramData\chocolatey\logs\chocolatey.log). 
 
Failures 
 - cmake - cmake not installed. The package was not found with the source(s) listed. 
 Source(s): 'https://chocolatey.org/api/v2/' 
 NOTE: When you specify explicit sources, it overrides default sources. 
If the package version is a prerelease and you didn't specify `--pre`, 
 the package may not be found. 
Please see https://chocolatey.org/docs/troubleshooting for more  
 assistance. 

pytorch_windows_test1 (2/2)

Step: "Test" (full log | pattern match details)

- cmake (exited 1) - cmake not installed. An error occurred during installation:

 Unable to resolve dependency 'cmake.install (= 3.16.1)'. 
cmake package files install completed. Performing other installation steps. 
The install of cmake was NOT successful. 
cmake not installed. An error occurred during installation: 
 Unable to resolve dependency 'cmake.install (= 3.16.1)'. 
 
Chocolatey installed 0/1 packages. 1 packages failed. 
 See the log for details (C:\ProgramData\chocolatey\logs\chocolatey.log). 
 
Failures 
 - cmake (exited 1) - cmake not installed. An error occurred during installation: 
 Unable to resolve dependency 'cmake.install (= 3.16.1)'. 

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[ngimel]

Thank you for your PR!

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@ngimel merged this pull request in d770fbc.