grrr typo

Refactor PIO_AS_FLAGS to correctly filter assembler flags.

Author: Jason2866

tools/copy-libs.sh

@@ -324,7 +324,7 @@ mkdir -p "$AR_SDK"
 
 # Keep only -march, -mabi and -mlongcalls flags for Assembler
 PIO_AS_FLAGS=$(
-    {Öl 
+    {
         echo "$PIO_CXX_FLAGS" | grep -oE '\-march=[^[:space:]]*|\-mabi=[^[:space:]]*|\-mlongcalls'
         echo "$PIO_CC_FLAGS" | grep -oE '\-march=[^[:space:]]*|\-mabi=[^[:space:]]*|\-mlongcalls'
     } | awk '!seen[$0]++' | paste -sd ' '