Makefile.nonreentrant: Rebuild against Fedora 26

According to the comments in the file and the git history, the
list of forbidden symbols was originally built against Fedora 9
in 2009 (!) and pretty much never refreshed afterwards.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
Reviewed-by: NDaniel P. Berrange <berrange@redhat.com>

Makefile.nonreentrant

@@ -15,9 +15,9 @@
 ## <http://www.gnu.org/licenses/>.
 
 #
-# Generated by running the following on Fedora 9:
+# Generated by running the following on Fedora 26:
 #
-#  nm -D --defined-only /lib/libc.so.6  \
+#  nm -D --defined-only /lib64/libc.so.6  \
 #      | grep '_r$' \
 #      | awk '{print $3}' \
 #      | grep -v __ \
@@ -43,6 +43,7 @@ NON_REENTRANT += ether_ntoa
 NON_REENTRANT += fcvt
 NON_REENTRANT += fgetgrent
 NON_REENTRANT += fgetpwent
+NON_REENTRANT += fgetsgent
 NON_REENTRANT += fgetspent
 NON_REENTRANT += getaliasbyname
 NON_REENTRANT += getaliasent
@@ -72,6 +73,8 @@ NON_REENTRANT += getrpcent
 NON_REENTRANT += getservbyname
 NON_REENTRANT += getservbyport
 NON_REENTRANT += getservent
+NON_REENTRANT += getsgent
+NON_REENTRANT += getsgnam
 NON_REENTRANT += getspent
 NON_REENTRANT += getspnam
 NON_REENTRANT += getutent
@@ -95,6 +98,7 @@ NON_REENTRANT += random
 NON_REENTRANT += rand
 NON_REENTRANT += seed48
 NON_REENTRANT += setstate
+NON_REENTRANT += sgetsgent
 NON_REENTRANT += sgetspent
 NON_REENTRANT += srand48
 NON_REENTRANT += srandom