typo fixes: aquire -> acquire

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/Documentation/digiepca.txt b/Documentation/digiepca.txt
index 88820fe..f2560e2 100644
--- a/Documentation/digiepca.txt
+++ b/Documentation/digiepca.txt
@@ -2,7 +2,7 @@
 http://www.digi.com for PCI cards.  They no longer maintain this driver,
 and have no 2.6 driver for ISA cards.
 
-This driver requires a number of user-space tools.  They can be aquired from
+This driver requires a number of user-space tools.  They can be acquired from
 http://www.digi.com, but only works with 2.4 kernels.