Add missing static qualifiers.

ChangeLog

@@ -1,3 +1,7 @@
+2013-12-21  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	Add missing static qualifiers.
+
 2013-12-21  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	Add missing includes.

grub-core/osdep/linux/getroot.c

@@ -888,7 +888,7 @@ grub_util_part_to_disk (const char *os_dev, struct stat *st,
   return path;
 }
 
-char *
+static char *
 grub_util_get_raid_grub_dev (const char *os_dev)
 {
   char *grub_dev = NULL;

util/grub-install-common.c

@@ -120,7 +120,7 @@ grub_install_copy_file (const char *src,
   return 1;
 }
 
-int
+static int
 grub_install_compress_file (const char *in_name,
 			    const char *out_name,
 			    int is_needed)

util/grub-install.c

@@ -536,7 +536,7 @@ is_same_disk (const char *a, const char *b)
     }
 }
 
-char *
+static char *
 get_rndstr (void)
 {
   grub_uint8_t rnd[15];