doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/common/cli.c b/common/cli.c
index d86046a..a7e3d84 100644
--- a/common/cli.c
+++ b/common/cli.c
@@ -27,7 +27,7 @@
  *
  * @param cmd	Command to run
  * @param flag	Execution flags (CMD_FLAG_...)
- * @return 0 on success, or != 0 on error.
+ * Return: 0 on success, or != 0 on error.
  */
 int run_command(const char *cmd, int flag)
 {
@@ -54,7 +54,7 @@
  *
  * @param cmd	Command to run
  * @param flag	Execution flags (CMD_FLAG_...)
- * @return 0 (not repeatable) or 1 (repeatable) on success, -1 on error.
+ * Return: 0 (not repeatable) or 1 (repeatable) on success, -1 on error.
  */
 int run_command_repeatable(const char *cmd, int flag)
 {