Fix FakeTimeProvider docs (#5227)

src/Libraries/Microsoft.Extensions.TimeProvider.Testing/FakeTimeProvider.cs

@@ -61,7 +61,7 @@ public FakeTimeProvider(DateTimeOffset startDateTime)
     /// <remarks>
     /// This defaults to <see cref="TimeSpan.Zero"/>.
     /// </remarks>
-    /// <exception cref="ArgumentOutOfRangeException">if the time value is set to less than <see cref="TimeSpan.Zero"/>.</exception>
+    /// <exception cref="ArgumentOutOfRangeException">The time value is less than <see cref="TimeSpan.Zero"/>.</exception>
     public TimeSpan AutoAdvanceAmount
     {
         get => _autoAdvanceAmount;
@@ -91,11 +91,11 @@ public override DateTimeOffset GetUtcNow()
     /// Advances the date and time in the UTC time zone.
     /// </summary>
     /// <param name="value">The date and time in the UTC time zone.</param>
-    /// <exception cref="ArgumentOutOfRangeException">if the supplied time value is before the current time.</exception>
+    /// <exception cref="ArgumentOutOfRangeException">The supplied time value is before the current time.</exception>
     /// <remarks>
     /// This method simply advances time. If the time is set forward beyond the
     /// trigger point of any outstanding timers, those timers will immediately trigger.
-    /// This is unlike the <see cref="AdjustTime" /> method below, which has no impact
+    /// This is unlike the <see cref="AdjustTime" /> method, which has no impact
     /// on timers.
     /// </remarks>
     public void SetUtcNow(DateTimeOffset value)
@@ -123,7 +123,7 @@ public void SetUtcNow(DateTimeOffset value)
     /// marches forward automatically in hardware, for the fake time provider the application is responsible for
     /// doing this explicitly by calling this method.
     /// </remarks>
-    /// <exception cref="ArgumentOutOfRangeException">if the time value is less than <see cref="TimeSpan.Zero"/>.</exception>
+    /// <exception cref="ArgumentOutOfRangeException">The time value is less than <see cref="TimeSpan.Zero"/>.</exception>
     public void Advance(TimeSpan delta)
     {
         _ = Throw.IfLessThan(delta.Ticks, 0);