[gtk-doc] Consistently use "" quotes

[William Jon McCann <mccann src gnome org>]

commit ea7d4f756d6825920dcd5b61235c49b0fc6595fe
Author: William Jon McCann <william jon mccann gmail com>
Date:   Thu Feb 6 08:55:20 2014 -0500

    Consistently use "" quotes

 gtkdoc-mkdb.in |   16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)
---
diff --git a/gtkdoc-mkdb.in b/gtkdoc-mkdb.in
index 09b35ae..166bde8 100755
--- a/gtkdoc-mkdb.in
+++ b/gtkdoc-mkdb.in
@@ -5023,7 +5023,7 @@ sub MarkDownParseSpanElementsInner {
         $markup .= "<literal>" . $element_text . "</literal>";
         $offset = length ($&);
       } else {
-        $markup .= '`';
+        $markup .= "`";
         $offset = 1;
       }
     } elsif ($closest_marker eq "@") {
@@ -5038,10 +5038,10 @@ sub MarkDownParseSpanElementsInner {
         $markup .= $1 . "<parameter>" . $2 . "</parameter>\n";
         $offset = length ($&);
       } elsif ($text =~ /^\\\@/) {
-        $markup .= '\@';
+        $markup .= "\@";
         $offset = length ($&);
       } else {
-        $markup .= '@';
+        $markup .= "@";
         $offset = 1;
       }
     } elsif ($closest_marker eq "#") {
@@ -5054,10 +5054,10 @@ sub MarkDownParseSpanElementsInner {
         $markup .= $1 . &MakeHashXRef ($2, "type");
         $offset = length ($&);
       } elsif ($text =~ /^\\#/) {
-        $markup .= '#';
+        $markup .= "#";
         $offset = length ($&);
       } else {
-        $markup .= '#';
+        $markup .= "#";
         $offset = 1;
       }
     } elsif ($closest_marker eq "%") {
@@ -5067,10 +5067,10 @@ sub MarkDownParseSpanElementsInner {
         $markup .= $1 . &MakeXRef ($2, &tagify ($2, "literal"));
         $offset = length ($&);
       } elsif ($text =~ /^\\%/) {
-        $markup .= '\%';
+        $markup .= "\%";
         $offset = length ($&);
       } else {
-        $markup .= '%';
+        $markup .= "%";
         $offset = 1;
       }
     }
@@ -5085,7 +5085,7 @@ sub MarkDownParseSpanElementsInner {
 
 sub MarkDownParseSpanElements {
   my ($text) = @_;
-  my @markers = ( '<', '![', '[', '`', '%', '#', '@' );
+  my @markers = ( "<", "![", "[", "`", "%", "#", "@" );
 
   $text = &MarkDownParseSpanElementsInner ($text, \ markers);