doc: Fix the Doxygen section endings

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/include/osmocom/gsm/a5.h b/include/osmocom/gsm/a5.h
index 7e6a17c..649dbab 100644
--- a/include/osmocom/gsm/a5.h
+++ b/include/osmocom/gsm/a5.h
@@ -58,6 +58,6 @@
 void osmo_a5_1(const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul);
 void osmo_a5_2(const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul);
 
-/*! }@ */
+/*! @} */
 
 #endif /* __OSMO_A5_H__ */
diff --git a/include/osmocom/gsm/abis_nm.h b/include/osmocom/gsm/abis_nm.h
index 5b5bff0..cc01765 100644
--- a/include/osmocom/gsm/abis_nm.h
+++ b/include/osmocom/gsm/abis_nm.h
@@ -35,6 +35,6 @@
 int abis_nm_chcomb4pchan(enum gsm_phys_chan_config pchan);
 enum abis_nm_chan_comb abis_nm_pchan4chcomb(uint8_t chcomb);
 
-/*! }@ */
+/*! @} */
 
 #endif /* _OSMO_GSM_ABIS_NM_H */
diff --git a/include/osmocom/gsm/lapdm.h b/include/osmocom/gsm/lapdm.h
index 52e8fc5..571fd46 100644
--- a/include/osmocom/gsm/lapdm.h
+++ b/include/osmocom/gsm/lapdm.h
@@ -157,6 +157,6 @@
 
 int lapdm_phsap_dequeue_prim(struct lapdm_entity *le, struct osmo_phsap_prim *pp);
 
-/*! }@ */
+/*! @} */
 
 #endif /* _OSMOCOM_LAPDM_H */
diff --git a/include/osmocom/gsm/protocol/gsm_08_58.h b/include/osmocom/gsm/protocol/gsm_08_58.h
index b6a5dd8..10c201d 100644
--- a/include/osmocom/gsm/protocol/gsm_08_58.h
+++ b/include/osmocom/gsm/protocol/gsm_08_58.h
@@ -556,6 +556,6 @@
 	RSL_MRPCI_PHASE_2PLUS	= 3,
 };
 
-/*! }@ */
+/*! @} */
 
 #endif /* PROTO_GSM_08_58_H */
diff --git a/include/osmocom/gsm/protocol/gsm_12_21.h b/include/osmocom/gsm/protocol/gsm_12_21.h
index 061dcb6..694df93 100644
--- a/include/osmocom/gsm/protocol/gsm_12_21.h
+++ b/include/osmocom/gsm/protocol/gsm_12_21.h
@@ -743,6 +743,6 @@
 	IPAC_BINF_CELL_ALLOC		= (1 << 2),
 };
 
-/*! }@ */
+/*! @} */
 
 #endif /* PROTO_GSM_12_21_H */
diff --git a/include/osmocom/gsm/rsl.h b/include/osmocom/gsm/rsl.h
index 712d17b..b8e4157 100644
--- a/include/osmocom/gsm/rsl.h
+++ b/include/osmocom/gsm/rsl.h
@@ -50,6 +50,6 @@
 struct msgb *rsl_rll_simple(uint8_t msg_type, uint8_t chan_nr,
 			    uint8_t link_id, int transparent);
 
-/*! }@ */
+/*! @} */
 
 #endif /* _OSMOCORE_RSL_H */
diff --git a/include/osmocom/gsm/tlv.h b/include/osmocom/gsm/tlv.h
index d2936d6..d1efc55 100644
--- a/include/osmocom/gsm/tlv.h
+++ b/include/osmocom/gsm/tlv.h
@@ -314,6 +314,6 @@
 #define TLVP_LEN(x, y)		(x)->lv[y].len
 #define TLVP_VAL(x, y)		(x)->lv[y].val
 
-/*! }@ */
+/*! @} */
 
 #endif /* _TLV_H */