Fix for OPTIONS consisting of a plain dash

assets/syntaxes/02_Extra/Manpage.sublime-syntax

@@ -85,6 +85,9 @@ contexts:
 
   options:
     # command-line options like --option=value, --some-flag, or -x
+    - match: '^[ ]{7}(-)(?=\s)'
+      captures:
+        1: entity.name.command-line-option.man
     - match: '^[ ]{7}(?=-|\+)'
       push: expect-command-line-option
     - match: '(?:[^a-zA-Z0-9_-]|^|\s){{command_line_option}}'

assets/syntaxes/02_Extra/syntax_test_man.man

@@ -131,6 +131,12 @@ OPTIONS
 #                                ^^ - variable
               output NUM (default 3) lines of copied context
 
+       -      This is  not really a switch, but indicates that standard input
+#      ^ entity.name.command-line-option.man
+#       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - entity - variable
+              is coming from a file or a pipe and not interactively from the
+              command line.
+
 EXAMPLE
        #include <stdio.h>
 #      ^^^^^^^^ source.c meta.preprocessor.include keyword.control.import.include