lib/: typos a/an

(cherry picked from commit 039686530730bf4b0a75eca626266255f3932cca)

src/lib/binrpc/binrpc_api.c

@@ -698,7 +698,7 @@ int binrpc_get_response_type(struct binrpc_response_handle *resp_handle)
  * and stops at each %v,  returning  a pointer after the %v, setting *size
  * to the string length (not including %v) and *type to the corresponding
  * BINRPC type (for now only BINRPC_T_ALL).
- * To escape a '%', use "%%", and check for type==-1 (which means skip an call
+ * To escape a '%', use "%%", and check for type==-1 (which means skip a call
  *  again parse_fmt).
  * Usage:
  *        n="test: %v,%v,%v\n";

src/lib/srdb1/db_op.h

@@ -21,7 +21,7 @@
 
 /**
  * \file lib/srdb1/db_op.h
- * \brief Type that represents a expression operator.
+ * \brief Type that represents an expression operator.
  * \ingroup db1
  */
 

src/lib/srdb1/schema/globalblocklist.xml

@@ -45,7 +45,7 @@
         <type>char</type>
         <size>1</size>
         <default>0</default>
-        <description>Specify if this a blocklist (0) or a allowlist (1) entry.</description>
+        <description>Specify if this is a blocklist (0) or an allowlist (1) entry.</description>
     </column>
 
      <column>

src/lib/srdb1/schema/userblocklist.xml

@@ -62,7 +62,7 @@
         <type>char</type>
         <size>1</size>
         <default>0</default>
-        <description>Specify if this a blocklist (0) or a allowlist (1) entry.</description>
+        <description>Specify if this is a blocklist (0) or an allowlist (1) entry.</description>
     </column>
 
     <index>