Track rename of base/ to android-base/.

Change-Id: Idf9444fece4aa89c93e15640de59a91f6e758ccf
diff --git a/libbacktrace/Backtrace.cpp b/libbacktrace/Backtrace.cpp
index 555e8cf..df94280 100644
--- a/libbacktrace/Backtrace.cpp
+++ b/libbacktrace/Backtrace.cpp
@@ -22,7 +22,7 @@
 
 #include <string>
 
-#include <base/stringprintf.h>
+#include <android-base/stringprintf.h>
 
 #include <backtrace/Backtrace.h>
 #include <backtrace/BacktraceMap.h>