runtime: make the GC message less committal.

We shouldn't guarantee this behavior, but suggest it's possible.

Change-Id: I4c2afb48b99be4d91537306d3337171a13c9990a
Reviewed-on: https://go-review.googlesource.com/12346
Reviewed-by: David Crawshaw <crawshaw@golang.org>

diff --git a/src/runtime/mgc.go b/src/runtime/mgc.go
index 5bd624293250c342d5be982d1267f3789bd4af18..068372439f7bc8b2e72a5c9ed2d186b114acf0af 100644 (file)
--- a/src/runtime/mgc.go
+++ b/src/runtime/mgc.go
@@ -770,7 +770,7 @@ var work struct {
        initialHeapLive uint64
 }
 
-// GC runs a garbage collection and blocks the entire program until the
+// GC runs a garbage collection. It might block the entire program until the
 // collection is complete.
 func GC() {
        startGC(gcForceBlockMode)