[Editorial] "sang-froid" -> "sangfroid"

src/epub/text/chapter-21.xhtml

@@ -64,7 +64,7 @@
 			<p>“Just pass me that toast-rack,” I said, and shut him up completely.</p>
 			<p>“But look here, I say,” began one of the others. “We’re not going to believe that, you know.”</p>
 			<p>“Ah, well,” said I, and shrugged my shoulders.</p>
-			<p>“He doesn’t want to tell us,” said the youngest young man in a stage aside; and then, with an appearance of great sang-froid, “You don’t mind if I take a cigarette?”</p>
+			<p>“He doesn’t want to tell us,” said the youngest young man in a stage aside; and then, with an appearance of great sangfroid, “You don’t mind if I take a cigarette?”</p>
 			<p>I waved him a cordial assent, and proceeded with my breakfast. Two of the others went and looked out of the farther window and talked inaudibly. I was struck by a thought. “The tide,” I said, “is running out?”</p>
 			<p>There was a pause, a doubt who should answer me. “It’s near the ebb,” said the fat little man.</p>
 			<p>“Well, anyhow,” I said, “it won’t float far.”</p>