lavu/opt: cosmetic fixes forgotten in the previous patch.

libavutil/opt.c

@@ -800,11 +800,14 @@ static int is_key_char(char c)
 }
 
 /**
- * Read a key from a string. The key consists of is_key_char characters and
- * must be terminated by a character from the delim string; spaces are
- * ignored. The key buffer must be 4 bytes larger than the longest
- * acceptable key. If the key is too long, an ellipsis will be written at
- * the end. @return  0 for success (even with ellipsis), <0 for failure
+ * Read a key from a string.
+ *
+ * The key consists of is_key_char characters and must be terminated by a
+ * character from the delim string; spaces are ignored. The key buffer must
+ * be 4 bytes larger than the longest acceptable key. If the key is too
+ * long, an ellipsis will be written at the end.
+ *
+ * @return  0 for success (even with ellipsis), <0 for failure
  */
 static int get_key(const char **ropts, const char *delim, char *key, unsigned key_size)
 {

libavutil/opt.h

@@ -394,7 +394,7 @@ int av_set_options_string(void *ctx, const char *opts,
                           const char *key_val_sep, const char *pairs_sep);
 
 /**
- * Parse the key=value pairs list in opts. For each key=value pair found,
+ * Parse the key-value pairs list in opts. For each key=value pair found,
  * set the value of the corresponding option in ctx.
  *
  * @param ctx          the AVClass object to set options on
@@ -417,7 +417,7 @@ int av_set_options_string(void *ctx, const char *opts,
  *          cannot be set
  *
  * Options names must use only the following characters: a-z A-Z 0-9 - . / _
- * Separators must use characters distinct from from options and from each
+ * Separators must use characters distinct from option names and from each
  * other.
  */
 int av_opt_set_from_string(void *ctx, const char *opts,