Re-generate gdb/gdbserver/gdbsupport configure scripts

In my previous commit, I did a last minute modification of warning.m4,
but forgot to re-generate the configure scripts, this commit fixes that.

gdb/ChangeLog:

	* configure: Re-generate.

gdbserver/ChangeLog:

	* configure: Re-generate.

gdbsupport/ChangeLog:

	* configure: Re-generate.

gdb/ChangeLog

@@ -2,6 +2,10 @@
 
 	* configure: Re-generate.
 
+2020-02-11  Simon Marchi  <simon.marchi@efficios.com>
+
+	* configure: Re-generate.
+
 2020-02-11  Simon Marchi  <simon.marchi@efficios.com>
 
 	* acinclude: Update warning.m4 path.

gdb/configure

@@ -16112,7 +16112,8 @@ build_warnings="-Wall -Wpointer-arith \
 -Wdeprecated-copy-dtor \
 -Wredundant-move \
 -Wmissing-declarations \
--Wstrict-null-sentinel"
+-Wstrict-null-sentinel \
+"
 
 case "${host}" in
   *-*-mingw32*)

gdbserver/ChangeLog

@@ -2,6 +2,10 @@
 
 	* configure: Re-generate.
 
+2020-02-11  Simon Marchi  <simon.marchi@efficios.com>
+
+	* configure: Re-generate.
+
 2020-02-11  Simon Marchi  <simon.marchi@efficios.com>
 
 	* acinclude.m4: Update warning.m4 path.

gdbserver/configure

@@ -9816,7 +9816,8 @@ build_warnings="-Wall -Wpointer-arith \
 -Wdeprecated-copy-dtor \
 -Wredundant-move \
 -Wmissing-declarations \
--Wstrict-null-sentinel"
+-Wstrict-null-sentinel \
+"
 
 case "${host}" in
   *-*-mingw32*)

gdbsupport/ChangeLog

@@ -1,3 +1,7 @@
+2020-02-11  Simon Marchi  <simon.marchi@efficios.com>
+
+	* configure: Re-generate.
+
 2020-02-11  Simon Marchi  <simon.marchi@efficios.com>
 
 	* warning.m4: Add -Wstrict-null-sentinel.

gdbsupport/configure

@@ -10854,7 +10854,8 @@ build_warnings="-Wall -Wpointer-arith \
 -Wdeprecated-copy-dtor \
 -Wredundant-move \
 -Wmissing-declarations \
--Wstrict-null-sentinel"
+-Wstrict-null-sentinel \
+"
 
 case "${host}" in
   *-*-mingw32*)