version: make redact_non_printables() non-static

As we are going to reuse redact_non_printables() outside "version.c",
let's make it non-static.

Author: chriscool

version.c

@@ -12,11 +12,7 @@
 const char git_version_string[] = GIT_VERSION;
 const char git_built_from_commit_string[] = GIT_BUILT_FROM_COMMIT;
 
-/*
- * Trim and replace each character with ascii code below 32 or above
- * 127 (included) using a dot '.' character.
- */
-static void redact_non_printables(struct strbuf *buf)
+void redact_non_printables(struct strbuf *buf)
 {
 	strbuf_trim(buf);
 	for (size_t i = 0; i < buf->len; i++) {

version.h

@@ -4,7 +4,15 @@
 extern const char git_version_string[];
 extern const char git_built_from_commit_string[];
 
+struct strbuf;
+
 const char *git_user_agent(void);
 const char *git_user_agent_sanitized(void);
 
+/*
+ * Trim and replace each character with ascii code below 32 or above
+ * 127 (included) using a dot '.' character.
+*/
+void redact_non_printables(struct strbuf *buf);
+
 #endif /* VERSION_H */