code review 8896045: all: fix typos

src/pkg/runtime/os_darwin.c

 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 #include "runtime.h"
 #include "defs_GOOS_GOARCH.h"
 #include "os_GOOS.h"
 #include "signal_unix.h"
 #include "stack.h"
 
@@ skipping 74 matching lines @@
         runtime·close(fd);
 }
 
 void
 runtime·goenvs(void)
 {
         runtime·goenvs_unix();
 
         // Register our thread-creation callback (see sys_darwin_{amd64,386}.s)
         // but only if we're not using cgo.  If we are using cgo we need
-        // to let the C pthread libary install its own thread-creation callback.
+        // to let the C pthread library install its own thread-creation callback.
         if(!runtime·iscgo) {
                 if(runtime·bsdthread_register() != 0) {
                         if(runtime·getenv("DYLD_INSERT_LIBRARIES"))
                                 runtime·throw("runtime: bsdthread_register error (unset DYLD_INSERT_LIBRARIES)");
                         runtime·throw("runtime: bsdthread_register error");
                 }
         }
 
 }
 
@@ skipping 477 matching lines @@
 {
         StackT st;
 
         st.ss_sp = (void*)p;
         st.ss_size = n;
         st.ss_flags = 0;
         if(p == nil)
                 st.ss_flags = SS_DISABLE;
         runtime·sigaltstack(&st, nil);
 }