ObjC Cleanups.
- Add missing license to testing header.
- Standardize license blocks.
- Fix some trailing whitespace.
PiperOrigin-RevId: 485683549
diff --git a/objectivec/GPBRootObject.m b/objectivec/GPBRootObject.m
index b546959..d013b2d 100644
--- a/objectivec/GPBRootObject.m
+++ b/objectivec/GPBRootObject.m
@@ -102,7 +102,7 @@
// http://mjtsai.com/blog/2015/12/16/osspinlock-is-unsafe/
// https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20151214/000372.html
// It was changed to a dispatch_semaphore_t, but that has potential for priority inversion issues.
-// The minOS versions are now high enough that os_unfair_lock can be used, and should provide
+// The minOS versions are now high enough that os_unfair_lock can be used, and should provide
// all the support we need. For more information in the concurrency/locking space see:
// https://gist.github.com/tclementdev/6af616354912b0347cdf6db159c37057
// https://developer.apple.com/library/archive/documentation/Performance/Conceptual/EnergyGuide-iOS/PrioritizeWorkWithQoS.html
