var golang.org/x/mod/zip.errGoModCase

3 uses

	golang.org/x/mod/zip (current package)
		zip.go#L164: 	errGoModCase       = errors.New("go.mod files must have lowercase names")
		zip.go#L275: 			addError(p, false, errGoModCase)
		zip.go#L447: 				addError(zf, errGoModCase)

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