Update language to comply with Android's inclusive language guidance

See https://source.android.com/setup/contribute/respectful-code for reference

Bug: 161896447
Change-Id: Iafcccbdbdf3ff1078e87000e2ce560ff09b43f68
diff --git a/adb/adb_utils.h b/adb/adb_utils.h
index 66cba12..e72d8b6 100644
--- a/adb/adb_utils.h
+++ b/adb/adb_utils.h
@@ -55,7 +55,7 @@
 
 bool set_file_block_mode(borrowed_fd fd, bool block);
 
-// Given forward/reverse targets, returns true if they look sane. If an error is found, fills
+// Given forward/reverse targets, returns true if they look valid. If an error is found, fills
 // |error| and returns false.
 // Currently this only checks "tcp:" targets. Additional checking could be added for other targets
 // if needed.