[WATCHDOG] replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c
index 61dde86..1277f7e 100644
--- a/drivers/watchdog/shwdt.c
+++ b/drivers/watchdog/shwdt.c
@@ -298,7 +298,7 @@
 	if (io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT,
 			       PAGE_SIZE, vma->vm_page_prot)) {
 		printk(KERN_ERR PFX "%s: io_remap_pfn_range failed\n",
-		       __FUNCTION__);
+		       __func__);
 		return -EAGAIN;
 	}