TouchInputMapper: add missing newline in dump()

Bug: 245989146
Test: presubmit
Change-Id: I718be899ec44859db9eb54f8eeb4370514afe878
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index 39a914d..4366b3a 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
@@ -271,7 +271,7 @@
                          toString(mFusedStylusPointerId).c_str());
     dump += StringPrintf(INDENT4 "External Stylus Data Timeout: %" PRId64 "\n",
                          mExternalStylusFusionTimeout);
-    dump += StringPrintf(INDENT4 " External Stylus Buttons Applied: 0x%08x",
+    dump += StringPrintf(INDENT4 "External Stylus Buttons Applied: 0x%08x\n",
                          mExternalStylusButtonsApplied);
     dump += INDENT3 "External Stylus State:\n";
     dumpStylusState(dump, mExternalStylusState);