fixes pt-mysql-summary-fails-to-parse-wsrep_provider_options-1264580

bin/pt-mysql-summary

@@ -1353,26 +1353,19 @@ pretty_print_cnf_file () {
 
    [ -e "$file" ] || return
 
-   awk '
-   BEGIN {
-      FS="="
-   }
-   /^[ \t]*[a-zA-Z[]/ {
-      if (length($2)) {
-         gsub(/^[ \t]*/, "", $1);
-         gsub(/^[ \t]*/, "", $2);
-         gsub(/[ \t]*$/, "", $1);
-         gsub(/[ \t]*$/, "", $2);
-         printf("%-35s = %s\n", $1, $2);
-      }
-      else if ( $0 ~ /\[/ ) {
-         print "";
-         print $1;
-      }
-      else {
-         print $1;
-      }
-   }' "$file"
+   perl -n -l -e '
+      my $line = $_;
+      if ( $line =~ /^[ \t]*[a-zA-Z[]/ ) { 
+         if ( $line=~/\s*(.*?)\s*=\s*(.*)\s*$/ ) { 
+            printf("%-35s = %s\n", $1, $2)  
+         } 
+         elsif ( $line =~ /\s*\[/ ) { 
+            print "\n$line" 
+         } else {
+            print $line
+         } 
+      }' "$file"
+
 }
 
 find_checkpoint_age() {