gdbsupport: tighten up libiberty code a bit with dnl

No functional change here, just touch up generated output slightly.

Approved-By: Tom Tromey <tom@tromey.com>

gdb/configure

diff --git a/gdb/configure b/gdb/configure
index c55d17d..d0fd176 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -29342,9 +29342,7 @@
 #define HAVE_DECL_STRVERSCMP $ac_have_decl
 _ACEOF
 
-
-  # Check for presence and size of long long.
-  ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
+    ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
 if test "x$ac_cv_type_long_long" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF

gdbserver/configure

diff --git a/gdbserver/configure b/gdbserver/configure
index 6a91318..0942ef1 100755
--- a/gdbserver/configure
+++ b/gdbserver/configure
@@ -13985,9 +13985,7 @@
 #define HAVE_DECL_STRVERSCMP $ac_have_decl
 _ACEOF
 
-
-  # Check for presence and size of long long.
-  ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
+    ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
 if test "x$ac_cv_type_long_long" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF

gdbsupport/configure

diff --git a/gdbsupport/configure b/gdbsupport/configure
index 83bc7ce..b45f12d 100755
--- a/gdbsupport/configure
+++ b/gdbsupport/configure
@@ -10527,9 +10527,7 @@
 #define HAVE_DECL_STRVERSCMP $ac_have_decl
 _ACEOF
 
-
-  # Check for presence and size of long long.
-  ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
+    ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
 if test "x$ac_cv_type_long_long" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF

gdbsupport/libiberty.m4

diff --git a/gdbsupport/libiberty.m4 b/gdbsupport/libiberty.m4
index 5345a62..7e78413 100644
--- a/gdbsupport/libiberty.m4
+++ b/gdbsupport/libiberty.m4
@@ -16,13 +16,12 @@
 dnl along with this program; see the file COPYING3.  If not see
 dnl <http://www.gnu.org/licenses/>.
 dnl
-
+dnl
 dnl Checks for declarations ansidecl.h and libiberty.h themselves
 dnl check with HAVE_DECL_XXX, etc.
-
 AC_DEFUN([libiberty_INIT],
-[
-  # Check for presence and size of long long.
+[dnl
+  dnl Check for presence and size of long long.
   AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
 
   AC_CHECK_DECLS([basename(char *)])

sim/configure

diff --git a/sim/configure b/sim/configure
index 29ea7ee..36cadce 100755
--- a/sim/configure
+++ b/sim/configure
@@ -13962,7 +13962,6 @@
 
 
 
-
 ac_fn_c_check_decl "$LINENO" "ffs" "ac_cv_have_decl_ffs" "$ac_includes_default"
 if test "x$ac_cv_have_decl_ffs" = xyes; then :
   ac_have_decl=1
@@ -14073,9 +14072,7 @@
 #define HAVE_DECL_STRVERSCMP $ac_have_decl
 _ACEOF
 
-
-  # Check for presence and size of long long.
-  ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
+    ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
 if test "x$ac_cv_type_long_long" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF