Bug 1416947 - Add fugacious, fugaciously and fugaciousness to the en-US dictionary. r=jet

extensions/spellcheck/locales/en-US/hunspell/en-US.dic

@@ -1,4 +1,4 @@
-52373
+52374
 0/nm
 0th/pt
 1/n1
@@ -27178,6 +27178,7 @@ fuehrer/MS
 fuel's
 fuel/ADGS
 fug
+fugacious/YP
 fugal
 fuggy
 fugitive/MS