config: fix default value comment (#115)

## Describe your changes and provide context

- update comments only, since the current values in the code already
match our proposal.

## Testing performed to validate your change

Author: blindchaser

config/config.go

@@ -34,7 +34,7 @@ type StateCommitConfig struct {
 	AsyncCommitBuffer int `mapstructure:"async-commit-buffer"`
 
 	// SnapshotKeepRecent defines what many old snapshots (excluding the latest one) to keep
-	// defaults to 1 to make sure ibc relayers work.
+	// defaults to 0 to only keep one current snapshot
 	SnapshotKeepRecent uint32 `mapstructure:"snapshot-keep-recent"`
 
 	// SnapshotInterval defines the block interval the memiavl snapshot is taken, default to 10000.

config/toml.go

@@ -23,7 +23,7 @@ sc-zero-copy = {{ .StateCommit.ZeroCopy }}
 sc-async-commit-buffer = {{ .StateCommit.AsyncCommitBuffer }}
 
 # KeepRecent defines how many state-commit snapshots (besides the latest one) to keep
-# defaults to 1 to make sure ibc relayers work.
+# defaults to 0 to only keep one current snapshot
 sc-keep-recent = {{ .StateCommit.SnapshotKeepRecent }}
 
 # SnapshotInterval defines the block interval the snapshot is taken, default to 10000 blocks.