ubstitute `//0' by '\\0'.

man3/stpcpy.3

@@ -37,7 +37,7 @@ stpcpy \- copy a string returning a pointer to its end
 The
 .BR stpcpy ()
 function copies the string pointed to by \fIsrc\fP
-(including the terminating `\\0' character) to the array pointed to by
+(including the terminating '\\0' character) to the array pointed to by
 \fIdest\fP.
 The strings may not overlap, and the destination string
 \fIdest\fP must be large enough to receive the copy.

man3/strlen.3

@@ -38,7 +38,7 @@ strlen \- calculate the length of a string
 The
 .BR strlen ()
 function calculates the length of the string
-\fIs\fP, not including the terminating `\\0' character.
+\fIs\fP, not including the terminating '\\0' character.
 .SH "RETURN VALUE"
 The
 .BR strlen ()

man3/strsep.3

@@ -45,7 +45,7 @@ and does nothing else.
 Otherwise, this function finds the first token
 in the string *\fIstringp\fP, where tokens
 are delimited by symbols in the string \fIdelim\fP.
-This token is terminated with a `\\0' character
+This token is terminated with a '\\0' character
 (by overwriting the delimiter)
 and *\fIstringp\fP is updated to point past the token.
 In case no delimiter was found, the token is taken to be

man3/strstr.3

@@ -48,7 +48,7 @@ The
 .BR strstr ()
 function finds the first occurrence of the substring
 \fIneedle\fP in the string \fIhaystack\fP.
-The terminating \`\\0' characters are not compared.
+The terminating '\\0' characters are not compared.
 
 The
 .BR strcasestr ()

man3/strtol.3

@@ -73,8 +73,8 @@ all,
 .BR strtol ()
 stores the original value of \fInptr\fP in
 \fI*endptr\fP (and returns 0).
-In particular, if \fI*nptr\fP is not `\\0' but \fI**endptr\fP
-is `\\0' on return, the entire string is valid.
+In particular, if \fI*nptr\fP is not '\\0' but \fI**endptr\fP
+is '\\0' on return, the entire string is valid.
 .PP
 The
 .BR strtoll ()

man3/strtoul.3

@@ -75,8 +75,8 @@ all,
 .BR strtoul ()
 stores the original value of \fInptr\fP in
 \fI*endptr\fP (and returns 0).
-In particular, if \fI*nptr\fP is not `\\0' but \fI**endptr\fP
-is `\\0' on return, the entire string is valid.
+In particular, if \fI*nptr\fP is not '\\0' but \fI**endptr\fP
+is '\\0' on return, the entire string is valid.
 .PP
 The
 .BR strtoull ()

man3/strxfrm.3

@@ -56,7 +56,7 @@ The
 .BR strxfrm ()
 function returns the number of bytes required to
 store the transformed string in \fIdest\fP excluding the terminating
-`\\0' character.
+'\\0' character.
 If the value returned is \fIn\fP or more, the
 contents of \fIdest\fP are indeterminate.
 .SH "CONFORMING TO"