minor whitespace fixes, per #2841

OpenCL/m25700_a0-optimized.cl

@@ -45,9 +45,9 @@ DECLSPEC u32 MurmurHash (const u32 seed, const u32 *w, const int pw_len)
     hash ^= hash >> R;
   }
 
-	hash *= M;
+  hash *= M;
   hash ^= hash >> 10;
-	hash *= M;
+  hash *= M;
   hash ^= hash >> 17;
 
   #undef M

OpenCL/m25700_a1-optimized.cl

@@ -44,9 +44,9 @@ DECLSPEC u32 MurmurHash (const u32 seed, const u32 *w, const int pw_len)
     hash ^= hash >> R;
   }
 
-	hash *= M;
+  hash *= M;
   hash ^= hash >> 10;
-	hash *= M;
+  hash *= M;
   hash ^= hash >> 17;
 
   #undef M

OpenCL/m25700_a3-optimized.cl

@@ -64,9 +64,9 @@ DECLSPEC u32x MurmurHash_w0 (const u32 seed, const u32x w0, const u32 *w, const
     }
   }
 
-	hash *= M;
+  hash *= M;
   hash ^= hash >> 10;
-	hash *= M;
+  hash *= M;
   hash ^= hash >> 17;
 
   #undef M

tools/test_modules/m25400.pm

@@ -110,7 +110,7 @@ sub pdf_compute_encryption_key_owner
   }
   else
   {
-	$o_key = substr($o_digest, 0, 16); #length is always 128 bits or 16 bytes
+  $o_key = substr($o_digest, 0, 16); #length is always 128 bits or 16 bytes
   }
   #printf("\$o_key = %s\n", unpack ("H*", $o_key));