Fix spacing, use correct conditional compilation symbol

Author: atykhyy

src/libraries/System.Threading.RateLimiting/src/System/Threading/RateLimiting/ConcurrencyLimiter.cs

@@ -396,10 +396,10 @@ public RequestRegistration(int permitCount, ConcurrencyLimiter limiter, Cancella
                 // is going to invoke the callback synchronously, but this does not create
                 // a deadlock because lock are reentrant
                 if (cancellationToken.CanBeCanceled)
-#if NETCOREAPP || NETSTANDARD2_1
-                    _cancellationTokenRegistration = cancellationToken.UnsafeRegister(Cancel, this) ;
+#if NETCOREAPP || NETSTANDARD2_1_OR_GREATER
+                    _cancellationTokenRegistration = cancellationToken.UnsafeRegister(Cancel, this);
 #else
-                    _cancellationTokenRegistration = cancellationToken.Register(Cancel, this) ;
+                    _cancellationTokenRegistration = cancellationToken.Register(Cancel, this);
 #endif
             }
 

src/libraries/System.Threading.RateLimiting/src/System/Threading/RateLimiting/FixedWindowRateLimiter.cs

@@ -448,10 +448,10 @@ public RequestRegistration(int permitCount, FixedWindowRateLimiter limiter, Canc
                 // is going to invoke the callback synchronously, but this does not create
                 // a deadlock because lock are reentrant
                 if (cancellationToken.CanBeCanceled)
-#if NETCOREAPP || NETSTANDARD2_1
-                    _cancellationTokenRegistration = cancellationToken.UnsafeRegister(Cancel, this) ;
+#if NETCOREAPP || NETSTANDARD2_1_OR_GREATER
+                    _cancellationTokenRegistration = cancellationToken.UnsafeRegister(Cancel, this);
 #else
-                    _cancellationTokenRegistration = cancellationToken.Register(Cancel, this) ;
+                    _cancellationTokenRegistration = cancellationToken.Register(Cancel, this);
 #endif
             }
 

src/libraries/System.Threading.RateLimiting/src/System/Threading/RateLimiting/SlidingWindowRateLimiter.cs

@@ -461,10 +461,10 @@ public RequestRegistration(int permitCount, SlidingWindowRateLimiter limiter, Ca
                 // is going to invoke the callback synchronously, but this does not create
                 // a deadlock because lock are reentrant
                 if (cancellationToken.CanBeCanceled)
-#if NETCOREAPP || NETSTANDARD2_1
-                    _cancellationTokenRegistration = cancellationToken.UnsafeRegister(Cancel, this) ;
+#if NETCOREAPP || NETSTANDARD2_1_OR_GREATER
+                    _cancellationTokenRegistration = cancellationToken.UnsafeRegister(Cancel, this);
 #else
-                    _cancellationTokenRegistration = cancellationToken.Register(Cancel, this) ;
+                    _cancellationTokenRegistration = cancellationToken.Register(Cancel, this);
 #endif
             }
 

src/libraries/System.Threading.RateLimiting/src/System/Threading/RateLimiting/TokenBucketRateLimiter.cs

@@ -463,10 +463,10 @@ public RequestRegistration(int permitCount, TokenBucketRateLimiter limiter, Canc
                 // is going to invoke the callback synchronously, but this does not create
                 // a deadlock because lock are reentrant
                 if (cancellationToken.CanBeCanceled)
-#if NETCOREAPP || NETSTANDARD2_1
-                    _cancellationTokenRegistration = cancellationToken.UnsafeRegister(Cancel, this) ;
+#if NETCOREAPP || NETSTANDARD2_1_OR_GREATER
+                    _cancellationTokenRegistration = cancellationToken.UnsafeRegister(Cancel, this);
 #else
-                    _cancellationTokenRegistration = cancellationToken.Register(Cancel, this) ;
+                    _cancellationTokenRegistration = cancellationToken.Register(Cancel, this);
 #endif
             }