Improve documentation of constraints syntax with brackets

Bug 12295

Author: fafik23

doc/man/man1/salloc.1

@@ -280,6 +280,11 @@ the different requirements contained within the brackets. For example,
 either the "rack1" or "rack2" features and two nodes with the "rack3" feature.
 The same request without the brackets will try to find a single node that
 meets those requirements.
+
+\fBNOTE:\fR Brackets are only reserved for \fBMultiple Counts\fR and
+\fBMatching OR\fR syntax.
+AND operators require a count for each feature inside square brackets
+(i.e. "[quad*2&hemi*1]").
 .TP
 \fBParenthesis\fR
 Parenthesis can be used to group like node features together. For example,

doc/man/man1/sbatch.1

@@ -315,6 +315,11 @@ the different requirements contained within the brackets. For example,
 either the "rack1" or "rack2" features and two nodes with the "rack3" feature.
 The same request without the brackets will try to find a single node that
 meets those requirements.
+
+\fBNOTE:\fR Brackets are only reserved for \fBMultiple Counts\fR and
+\fBMatching OR\fR syntax.
+AND operators require a count for each feature inside square brackets
+(i.e. "[quad*2&hemi*1]").
 .TP
 \fBParenthesis\fR
 Parenthesis can be used to group like node features together. For example,

doc/man/man1/srun.1

@@ -318,6 +318,11 @@ the different requirements contained within the brackets. For example,
 either the "rack1" or "rack2" features and two nodes with the "rack3" feature.
 The same request without the brackets will try to find a single node that
 meets those requirements.
+
+\fBNOTE:\fR Brackets are only reserved for \fBMultiple Counts\fR and
+\fBMatching OR\fR syntax.
+AND operators require a count for each feature inside square brackets
+(i.e. "[quad*2&hemi*1]").
 .TP
 \fBParenthesis\fR
 Parenthesis can be used to group like node features together. For example,