Portability fix: use head -n 1 iso head -1

bfa762d4 · Jean-Paul Saman · c36c1553 · bfa762d4
Commit bfa762d4 authored Jun 13, 2007 by Jean-Paul Saman
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bootstrap bootstrap +1 -1

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--- a/bootstrap
+++ b/bootstrap
@@ -64,7 +64,7 @@ fi

 # Check for autoconf
 rm -f m4/autoconf260.m4
-case "$(autoconf --version|head -1)" in
+case "$(autoconf --version|head -n 1)" in
  *2.5[012345678]*)
    echo "Hey, your autoconf is quite old. Update it." >&2
    exit 1