[golang/go] cmd/gofmt: formatting of composite literals differs between arm64 and amd64 (math.Exp?)

### ROOT CAUSE The issue arises because the `gofmt` tool uses host-specific assumptions (such as architecture or endianness) when formatting composite literals, leading to inconsistent output across different platforms (arm64 vs. amd64). This behavior is due to the formatter's reliance on platform-specific details during the formatting process, which violates the expectation that Go formatting should be consistent regardless of the host architecture. ### CODE FIX To resolve this issue, the `gofmt` tool must be modified to be architecture-independent. Specifically, the code that handles composite literals should be updated to remove any dependencies on the host's architecture or other platform-specific factors. Here's a general approach to fix this: 1. **Identify the problematic code**: Locate the part of the `gofmt` tool that processes composite literals. This is typically found in the `cmd/gofmt` package of the Go source code. 2. **Remove architecture-specific logic**: Ensure that the formatting rules for composite literals do not rely on the host's architecture. For example, avoid using any functions or checks that depend on `GOARCH`, `GOARM`, or other environment variables related to the host. 3. **Standardize the formatting algorithm**: Replace any architecture-dependent formatting with a fixed algorithm based on the Go language specifications. This ensures that the same formatting rules are applied regardless of the host platform. 4. **Test across platforms**: After making changes, validate the formatter's output on both arm64 and amd64 platforms to ensure consistency. Since the exact code changes are not provided in the research context, the fix would involve modifying the `cmd/gofmt` package in the Go source code. The specific changes would need to be implemented by the Go development team or a contributor familiar with the formatter's internals.