bigtable: small doc fix to UseStandardSQL

Makes it consistent with query.go's UseStandardSQL, and seems to make more
sense.

Change-Id: If5db168f5d7a88cbfd999bc54de645e1c6232c89
Reviewed-on: https://code-review.googlesource.com/c/gocloud/+/45270
Reviewed-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
diff --git a/bigquery/table.go b/bigquery/table.go
index a0ea872..0e85cba 100644
--- a/bigquery/table.go
+++ b/bigquery/table.go
@@ -58,7 +58,7 @@
 	// At most one of UseLegacySQL and UseStandardSQL can be true.
 	UseLegacySQL bool
 
-	// Use Legacy SQL for the view query. The default.
+	// Use Standard SQL for the view query. The default.
 	// At most one of UseLegacySQL and UseStandardSQL can be true.
 	// Deprecated: use UseLegacySQL.
 	UseStandardSQL bool