time.rs: Make spelling of "Darwin" consistent

numbermaniac · web-flow · commit 8f11127d893b · 2020-09-04T14:21:52.000+10:00
diff --git a/library/std/src/time.rs b/library/std/src/time.rs
@@ -159,7 +159,7 @@ pub struct Instant(time::Instant);
 /// | CloudABI  | [clock_time_get (Realtime Clock)]                                    |
 /// | SGX       | [`insecure_time` usercall]. More information on [timekeeping in SGX] |
 /// | UNIX      | [clock_gettime (Realtime Clock)]                                     |
-/// | DARWIN    | [gettimeofday]                                                       |
+/// | Darwin    | [gettimeofday]                                                       |
 /// | VXWorks   | [clock_gettime (Realtime Clock)]                                     |
 /// | WASI      | [__wasi_clock_time_get (Realtime Clock)]                             |
 /// | Windows   | [GetSystemTimePreciseAsFileTime] / [GetSystemTimeAsFileTime]         |
