src: use default initializers over settings fields on the constructor

PR-URL: #23532
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Gireesh Punathil <[email protected]>
Reviewed-By: Sakthipriyan Vairamani <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>

Author: andrewjdmccann

Diff for: src/spawn_sync.cc

@@ -50,9 +50,7 @@ using v8::String;
 using v8::Value;
 
 
-SyncProcessOutputBuffer::SyncProcessOutputBuffer()
-    : used_(0),
-      next_(nullptr) {
+SyncProcessOutputBuffer::SyncProcessOutputBuffer() {
 }
 
 

Diff for: src/spawn_sync.h

@@ -56,9 +56,9 @@ class SyncProcessOutputBuffer {
  private:
   // Use unsigned int because that's what `uv_buf_init` takes.
   mutable char data_[kBufferSize];
-  unsigned int used_;
+  unsigned int used_ = 0;
 
-  SyncProcessOutputBuffer* next_;
+  SyncProcessOutputBuffer* next_ = nullptr;
 };