binman: Drop the underscore in _ReadEntries()

This function can be overridden so should not have an underscore. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/etype/blob_phase.py b/tools/binman/etype/blob_phase.py
index 54ca54c..ed25e46 100644
--- a/tools/binman/etype/blob_phase.py
+++ b/tools/binman/etype/blob_phase.py
@@ -48,4 +48,4 @@
             subnode = state.AddSubnode(self._node, name)
 
         # Read entries again, now that we have some
-        self._ReadEntries()
+        self.ReadEntries()
diff --git a/tools/binman/etype/cbfs.py b/tools/binman/etype/cbfs.py
index 44db7b9..0a858b8 100644
--- a/tools/binman/etype/cbfs.py
+++ b/tools/binman/etype/cbfs.py
@@ -171,7 +171,7 @@
         self._cbfs_arg = fdt_util.GetString(node, 'cbfs-arch', 'x86')
         self.align_default = None
         self._cbfs_entries = OrderedDict()
-        self._ReadSubnodes()
+        self.ReadEntries()
         self.reader = None
 
     def ObtainContents(self, skip=None):
@@ -204,7 +204,7 @@
         self.SetContents(data)
         return True
 
-    def _ReadSubnodes(self):
+    def ReadEntries(self):
         """Read the subnodes to find out what should go in this CBFS"""
         for node in self._node.subnodes:
             entry = Entry.Create(self, node)
diff --git a/tools/binman/etype/files.py b/tools/binman/etype/files.py
index 9b04a49..927d0f0 100644
--- a/tools/binman/etype/files.py
+++ b/tools/binman/etype/files.py
@@ -64,4 +64,4 @@
                 state.AddInt(subnode, 'align', self._files_align)
 
         # Read entries again, now that we have some
-        self._ReadEntries()
+        self.ReadEntries()
diff --git a/tools/binman/etype/section.py b/tools/binman/etype/section.py
index e2949fc..281a228 100644
--- a/tools/binman/etype/section.py
+++ b/tools/binman/etype/section.py
@@ -85,9 +85,9 @@
         if filename:
             self._filename = filename
 
-        self._ReadEntries()
+        self.ReadEntries()
 
-    def _ReadEntries(self):
+    def ReadEntries(self):
         for node in self._node.subnodes:
             if node.name.startswith('hash') or node.name.startswith('signature'):
                 continue
@@ -741,5 +741,5 @@
             missing: List of missing properties / entry args, each a string
         """
         if not self._ignore_missing:
-            entry.Raise('Missing required properties/entry args: %s' %
-                       (', '.join(missing)))
+            missing = ', '.join(missing)
+            entry.Raise(f'Missing required properties/entry args: {missing}')