Consistently use %m rather than strerror() in logging.

When I added %m to async_safe_* too, we never followed up and cleaned up
callers.

Test: treehugger
Change-Id: If81943c4c45de49f0fb4bc29cfbd3fc53d4a47fe
diff --git a/libc/bionic/libc_init_common.cpp b/libc/bionic/libc_init_common.cpp
index d922641..7ef79b6 100644
--- a/libc/bionic/libc_init_common.cpp
+++ b/libc/bionic/libc_init_common.cpp
@@ -340,11 +340,11 @@
 #if !defined(__LP64__)
   int old_value = personality(0xffffffff);
   if (old_value == -1) {
-    async_safe_fatal("error getting old personality value: %s", strerror(errno));
+    async_safe_fatal("error getting old personality value: %m");
   }
 
   if (personality((static_cast<unsigned int>(old_value) & ~PER_MASK) | PER_LINUX32) == -1) {
-    async_safe_fatal("error setting PER_LINUX32 personality: %s", strerror(errno));
+    async_safe_fatal("error setting PER_LINUX32 personality: %m");
   }
 #endif
 }