Typo in host requirements script

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@10978 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

prologue/hostreqs.xml

@@ -165,7 +165,7 @@ export LC_ALL=C
 bash --version | head -n1 | cut -d" " -f2-4
 MYSH=$(readlink -f /bin/sh)
 echo "/bin/sh -> $MYSH"
-echo $MYSH | grep -qv bash || echo "ERROR: /bin/sh does not point to bash"
+echo $MYSH | grep -q bash || echo "ERROR: /bin/sh does not point to bash"
 unset MYSH
 
 echo -n "Binutils: "; ld --version | head -n1 | cut -d" " -f3-