Merge changes I0332cc46,I5f8c7737

* changes:
  Fix dump of active config
  SF: In dumpsys add head row for "Allocated buffers" table
diff --git a/libs/ui/GraphicBufferAllocator.cpp b/libs/ui/GraphicBufferAllocator.cpp
index 943d13e..91d2d58 100644
--- a/libs/ui/GraphicBufferAllocator.cpp
+++ b/libs/ui/GraphicBufferAllocator.cpp
@@ -83,20 +83,17 @@
     KeyedVector<buffer_handle_t, alloc_rec_t>& list(sAllocList);
     uint64_t total = 0;
     result.append("GraphicBufferAllocator buffers:\n");
-    const size_t c = list.size();
-    for (size_t i=0 ; i<c ; i++) {
+    const size_t count = list.size();
+    StringAppendF(&result, "%10s | %11s | %18s | %s | %8s | %10s | %s\n", "Handle", "Size",
+                  "W (Stride) x H", "Layers", "Format", "Usage", "Requestor");
+    for (size_t i = 0; i < count; i++) {
         const alloc_rec_t& rec(list.valueAt(i));
-        if (rec.size) {
-            StringAppendF(&result,
-                          "%10p: %7.2f KiB | %4u (%4u) x %4u | %4u | %8X | 0x%" PRIx64 " | %s\n",
-                          list.keyAt(i), static_cast<double>(rec.size) / 1024.0, rec.width, rec.stride, rec.height,
-                          rec.layerCount, rec.format, rec.usage, rec.requestorName.c_str());
-        } else {
-            StringAppendF(&result,
-                          "%10p: unknown     | %4u (%4u) x %4u | %4u | %8X | 0x%" PRIx64 " | %s\n",
-                          list.keyAt(i), rec.width, rec.stride, rec.height, rec.layerCount,
-                          rec.format, rec.usage, rec.requestorName.c_str());
-        }
+        std::string sizeStr = (rec.size)
+                ? base::StringPrintf("%7.2f KiB", static_cast<double>(rec.size) / 1024.0)
+                : "unknown";
+        StringAppendF(&result, "%10p | %11s | %4u (%4u) x %4u | %6u | %8X | 0x%8" PRIx64 " | %s\n",
+                      list.keyAt(i), sizeStr.c_str(), rec.width, rec.stride, rec.height,
+                      rec.layerCount, rec.format, rec.usage, rec.requestorName.c_str());
         total += rec.size;
     }
     StringAppendF(&result, "Total allocated by GraphicBufferAllocator (estimate): %.2f KB\n",
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 9e5b8d8..6501749 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -4824,9 +4824,10 @@
         const auto activeConfig = getHwComposer().getActiveConfig(*displayId);
         std::string fps, xDpi, yDpi;
         if (activeConfig) {
-            fps = std::to_string(1e9 / getHwComposer().getDisplayVsyncPeriod(*displayId)) + " fps";
-            xDpi = activeConfig->getDpiX();
-            yDpi = activeConfig->getDpiY();
+            fps = base::StringPrintf("%.2f Hz",
+                                     1e9f / getHwComposer().getDisplayVsyncPeriod(*displayId));
+            xDpi = base::StringPrintf("%.2f", activeConfig->getDpiX());
+            yDpi = base::StringPrintf("%.2f", activeConfig->getDpiY());
         } else {
             fps = "unknown";
             xDpi = "unknown";