Update a comment.
diff --git a/configure.ac b/configure.ac
index fe010fc..5a4651e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -832,7 +832,7 @@
 			 SSRC="$SSRC pcap-dag.c"
 		fi
 
-		# See if we can find a general version string.
+		# Check for various DAG API functions.
 		# Don't need to save and restore LIBS to prevent -ldag being
 		# included if there's a found-action (arg 3).
 		saved_ldflags=$LDFLAGS