Fixed printf-calls to print only one string

general_utils

@@ -25,6 +25,6 @@ exec_process_substitution () {
     __result=${__result//[$'\r\n\t']/ } # remove \r\n\t from __result
 
     log_debug "$func:${LINENO} result=$__result"
-    printf '%s' $__result
+    printf '%s' "$__result"
     return $__result_code
 }

git_helpers

@@ -29,7 +29,7 @@ latest_commit () {
     if ! [ -z "$c" ]; then
         if grep -qE "^[[:xdigit:]]{6,}$" <<< $c; then
             log_debug "$func:${LINENO} commit -> $c"
-            printf "%s\n" $c
+            printf "%s\n" "$c"
         else
             log_crit "$func:${LINENO} wrong format for commit c=$c"
         fi