Fix wording for range operator spacing rule in F# style guide (#49311)

Author: VMikulasek

docs/fsharp/style-guide/formatting.md

@@ -660,7 +660,7 @@ x ^^^ y // Bitwise xor, also for working with “flags” enumeration
 
 ### Formatting range operator expressions
 
-Only add spaces around the `..` when all expressions are non-atomic.
+Only add spaces around the `..` if any expression is non-atomic.
 Integers and single word identifiers are considered atomic.
 
 ```fsharp