include: replace tabs with spaces in headers

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15824)

include/crypto/punycode.h

diff --git a/include/crypto/punycode.h b/include/crypto/punycode.h
index f47eded..a8f128d 100644
--- a/include/crypto/punycode.h
+++ b/include/crypto/punycode.h
@@ -12,10 +12,10 @@
 # pragma once
 
 int ossl_punycode_decode (
-	const char *pEncoded,
-	const size_t enc_len,
-	unsigned int *pDecoded,
-	unsigned int *pout_length
+        const char *pEncoded,
+        const size_t enc_len,
+        unsigned int *pDecoded,
+        unsigned int *pout_length
 );
 
 int ossl_a2ulabel(const char *in, char *out, size_t *outlen);

include/openssl/configuration.h.in

diff --git a/include/openssl/configuration.h.in b/include/openssl/configuration.h.in
index e4d4f52..b84dc1d 100644
--- a/include/openssl/configuration.h.in
+++ b/include/openssl/configuration.h.in
@@ -27,9 +27,9 @@
 
 {- if (@{$config{openssl_sys_defines}}) {
       foreach (@{$config{openssl_sys_defines}}) {
-	$OUT .= "# ifndef $_\n";
-	$OUT .= "#  define $_ 1\n";
-	$OUT .= "# endif\n";
+        $OUT .= "# ifndef $_\n";
+        $OUT .= "#  define $_ 1\n";
+        $OUT .= "# endif\n";
       }
     }
     foreach (@{$config{openssl_api_defines}}) {
@@ -38,9 +38,9 @@
     }
     if (@{$config{openssl_feature_defines}}) {
       foreach (@{$config{openssl_feature_defines}}) {
-	$OUT .= "# ifndef $_\n";
-	$OUT .= "#  define $_\n";
-	$OUT .= "# endif\n";
+        $OUT .= "# ifndef $_\n";
+        $OUT .= "#  define $_\n";
+        $OUT .= "# endif\n";
       }
     }
     "";