Syntax: Adjust frontmatter punctuation scope

This commit aligns syntax definitions with ST's Markdown.

Author: deathaxe

syntaxes/Fold.tmPreferences

@@ -31,6 +31,14 @@
 				<key>excludeTrailingNewlines</key>
 				<false/>
 			</dict>
+			<dict>
+				<key>begin</key>
+				<string>punctuation.section.frontmatter.begin.markdown</string>
+				<key>end</key>
+				<string>punctuation.section.frontmatter.end.markdown</string>
+				<key>excludeTrailingNewlines</key>
+				<true/>
+			</dict>
 		</array>
 	</dict>
 </dict>

syntaxes/Markdown.sublime-syntax

@@ -319,46 +319,46 @@ contexts:
     - match: (---)\s*(?i:(coffee)\s*)\n
       captures:
         0: meta.frontmatter.markdown
-        1: punctuation.section.block.begin.frontmatter.markdown
+        1: punctuation.section.frontmatter.begin.markdown
         2: constant.other.language-name.markdown
       embed: scope:source.coffee
       embed_scope: meta.frontmatter.markdown source.coffee.embedded.markdown
       escape: ^(---|\.{3})\s*\n  # pandoc requires the remainder of the line to be blank
       escape_captures:
         0: meta.frontmatter.markdown
-        1: punctuation.section.block.end.frontmatter.markdown
+        1: punctuation.section.frontmatter.end.markdown
     - match: (---)\s*(?i:(json)\s*)\n
       captures:
         0: meta.frontmatter.markdown
-        1: punctuation.section.block.begin.frontmatter.markdown
+        1: punctuation.section.frontmatter.begin.markdown
         2: constant.other.language-name.markdown
       embed: scope:source.json
       embed_scope: meta.frontmatter.markdown source.json.embedded.markdown
       escape: ^(---|\.{3})\s*\n # pandoc requires the remainder of the line to be blank
       escape_captures:
         0: meta.frontmatter.markdown
-        1: punctuation.section.block.end.frontmatter.markdown
+        1: punctuation.section.frontmatter.end.markdown
     - match: (---)\s*(?i:(yaml|yml)\s*)?\n
       captures:
         0: meta.frontmatter.markdown
-        1: punctuation.section.block.begin.frontmatter.markdown
+        1: punctuation.section.frontmatter.begin.markdown
         2: constant.other.language-name.markdown
       embed: scope:source.yaml
       embed_scope: meta.frontmatter.markdown source.yaml.embedded.markdown
       escape: ^(---|\.{3})\s*\n  # pandoc requires the remainder of the line to be blank
       escape_captures:
         0: meta.frontmatter.markdown
-        1: punctuation.section.block.end.frontmatter.markdown
+        1: punctuation.section.frontmatter.end.markdown
     - match: (\+{3})\s*\n
       captures:
         0: meta.frontmatter.markdown
-        1: punctuation.section.block.begin.frontmatter.markdown
+        1: punctuation.section.frontmatter.begin.markdown
       embed: scope:source.toml
       embed_scope: meta.frontmatter.markdown source.toml.embedded.markdown
       escape: ^(\+{3})\s*\n
       escape_captures:
         0: meta.frontmatter.markdown
-        1: punctuation.section.block.end.frontmatter.markdown
+        1: punctuation.section.frontmatter.end.markdown
 
   markdown:
     - include: indented-code-blocks

syntaxes/MultiMarkdown.sublime-syntax

@@ -24,13 +24,13 @@ contexts:
     - match: ^(---)\s*\n
       captures:
         0: meta.frontmatter.multimarkdown
-        1: punctuation.section.block.begin.frontmatter.multimarkdown
+        1: punctuation.section.frontmatter.begin.multimarkdown
       embed: frontmatter-content
       embed_scope: meta.frontmatter.multimarkdown
       escape: ^(---|\.{3})\s*\n
       escape_captures:
         0: meta.frontmatter.multimarkdown
-        1: punctuation.section.block.end.frontmatter.multimarkdown
+        1: punctuation.section.frontmatter.end.multimarkdown
       pop: 1
     # Classic key-value frontmatter beginning with first key, terminated by empty line.
     - match: ^(?={{header}})